{"id":121964,"date":"2026-11-04T03:16:39","date_gmt":"2026-11-03T19:16:39","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/121964.html"},"modified":"2026-11-04T03:16:39","modified_gmt":"2026-11-03T19:16:39","slug":"php-%e4%b8%ad%e7%9a%84%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f%ef%bc%9a%e5%b7%a5%e5%8e%82%e6%a8%a1%e5%bc%8f%e4%b8%8e%e5%8d%95%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/121964.html","title":{"rendered":"PHP \u4e2d\u7684\u8bbe\u8ba1\u6a21\u5f0f\uff1a\u5de5\u5382\u6a21\u5f0f\u4e0e\u5355\u4f8b"},"content":{"rendered":"<h3>1. \u5f15\u8a00<\/h3>\n<p>\u5728 PHP \u9879\u76ee\u91cc&#xff0c;\u968f\u7740\u4e1a\u52a1\u4ee3\u7801\u4e0d\u65ad\u81a8\u80c0&#xff0c;\u5bf9\u8c61\u7684\u521b\u5efa\u4e0e\u5171\u4eab\u5f80\u5f80\u4f1a\u53d8\u6210\u4e00\u56e2\u4e71\u9ebb&#xff1a;new \u6563\u843d\u5728\u5404\u5904\u3001\u6570\u636e\u5e93\u8fde\u63a5\u88ab\u53cd\u590d\u5b9e\u4f8b\u5316\u3001\u65e5\u5fd7\u5bf9\u8c61\u5230\u5904\u4f20\u9012\u3002\u8bbe\u8ba1\u6a21\u5f0f\u6b63\u662f\u89e3\u51b3\u8fd9\u7c7b\u95ee\u9898\u7684\u6210\u719f\u7ecf\u9a8c\u603b\u7ed3\u3002<\/p>\n<p>\u672c\u6587\u805a\u7126 PHP \u4e2d\u6700\u5e38\u7528\u3001\u4e5f\u6700\u5bb9\u6613\u88ab\u8bef\u7528\u7684\u4e24\u7c7b\u521b\u5efa\u578b\u6a21\u5f0f\u2014\u2014\u5de5\u5382\u6a21\u5f0f\u4e0e\u5355\u4f8b\u6a21\u5f0f&#xff0c;\u5e76\u7ed9\u51fa\u4e00\u4e2a\u53ef\u843d\u5730\u7684\u65e5\u5fd7\u8bb0\u5f55\u5668\u6848\u4f8b\u3002<\/p>\n<h3>2. \u4e3a\u4ec0\u4e48\u9700\u8981\u5de5\u5382\u6a21\u5f0f<\/h3>\n<p>\u76f4\u63a5 new \u4e00\u4e2a\u5bf9\u8c61\u770b\u4f3c\u7b80\u5355&#xff0c;\u4f46\u4f1a\u5e26\u6765\u51e0\u4e2a\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>\u8026\u5408&#xff1a;\u8c03\u7528\u65b9\u5fc5\u987b\u77e5\u9053\u5177\u4f53\u7c7b\u540d\u4e0e\u6784\u9020\u53c2\u6570\u3002<\/li>\n<li>\u96be\u4ee5\u66ff\u6362&#xff1a;\u60f3\u4ece FileLogger \u6362\u6210 RedisLogger&#xff0c;\u9700\u8981\u6539\u52a8\u6240\u6709\u8c03\u7528\u70b9\u3002<\/li>\n<li>\u6784\u9020\u590d\u6742&#xff1a;\u5bf9\u8c61\u521d\u59cb\u5316\u9700\u8981\u591a\u6b65\u914d\u7f6e\u65f6&#xff0c;\u91cd\u590d\u4ee3\u7801\u4f1a\u8fc5\u901f\u8513\u5ef6\u3002<\/li>\n<\/ul>\n<p>\u5de5\u5382\u6a21\u5f0f\u7684\u6838\u5fc3\u601d\u60f3\u662f&#xff1a;\u628a\u300c\u521b\u5efa\u5bf9\u8c61\u300d\u8fd9\u4ef6\u4e8b\u4ece\u4e1a\u52a1\u903b\u8f91\u4e2d\u62bd\u79bb\u51fa\u6765&#xff0c;\u7531\u4e13\u95e8\u7684\u5de5\u5382\u8d1f\u8d23\u3002<\/p>\n<p>\u7528\u4e00\u5f20\u56fe\u6982\u62ec\u300c\u76f4\u63a5 new\u300d\u4e0e\u300c\u5de5\u5382\u521b\u5efa\u300d\u7684\u5dee\u522b&#xff1a;<\/p>\n<p>#mermaid-svg-TMeRvlX05jM0q7BS{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-TMeRvlX05jM0q7BS .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-TMeRvlX05jM0q7BS .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-TMeRvlX05jM0q7BS .error-icon{fill:#552222;}#mermaid-svg-TMeRvlX05jM0q7BS .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-TMeRvlX05jM0q7BS .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-TMeRvlX05jM0q7BS .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-TMeRvlX05jM0q7BS 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96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-TMeRvlX05jM0q7BS .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-TMeRvlX05jM0q7BS rect.text{fill:none;stroke-width:0;}#mermaid-svg-TMeRvlX05jM0q7BS .icon-shape,#mermaid-svg-TMeRvlX05jM0q7BS .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-TMeRvlX05jM0q7BS .icon-shape p,#mermaid-svg-TMeRvlX05jM0q7BS .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-TMeRvlX05jM0q7BS .icon-shape .label rect,#mermaid-svg-TMeRvlX05jM0q7BS .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-TMeRvlX05jM0q7BS .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-TMeRvlX05jM0q7BS .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-TMeRvlX05jM0q7BS :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<span class=\"nodeLabel\"><\/p>\n<p>\u5de5\u5382\u521b\u5efa&#xff1a;\u521b\u5efa\u903b\u8f91\u96c6\u4e2d<\/p>\n<p><\/span><span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u4e1a\u52a1\u4ee3\u7801<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>LoggerFactory::create(type)<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>FileLogger<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>RedisLogger<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u76f4\u63a5 new&#xff1a;\u8c03\u7528\u65b9\u627f\u62c5\u521b\u5efa\u7ec6\u8282<\/p>\n<p><\/span><span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u4e1a\u52a1\u4ee3\u7801<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>new FileLogger(path)<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>new RedisLogger(host, port)<\/p>\n<p><\/span><\/p>\n<h3>3. \u7b80\u5355\u5de5\u5382<\/h3>\n<p>\u7b80\u5355\u5de5\u5382&#xff08;Simple Factory&#xff09;\u5e76\u4e0d\u662f GoF 23 \u79cd\u6a21\u5f0f\u4e4b\u4e00&#xff0c;\u4f46\u5b83\u662f\u7406\u89e3\u5de5\u5382\u5bb6\u65cf\u7684\u6700\u4f73\u8d77\u70b9\u3002<\/p>\n<p><span class=\"token delimiter important\">&lt;?php<\/span><\/p>\n<p><span class=\"token keyword\">interface<\/span> <span class=\"token class-name-definition class-name\">Logger<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">FileLogger<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Logger<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">__construct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">private<\/span> <span class=\"token keyword type-declaration\">string<\/span> <span class=\"token variable\">$path<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">file_put_contents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">path<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">$message<\/span> <span class=\"token operator\">.<\/span> <span class=\"token constant\">PHP_EOL<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">FILE_APPEND<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">EchoLogger<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Logger<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">echo<\/span> <span class=\"token variable\">$message<\/span> <span class=\"token operator\">.<\/span> <span class=\"token constant\">PHP_EOL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">LoggerFactory<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$type<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Logger<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">match<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token variable\">$type<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string single-quoted-string\">&#039;file&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FileLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">__DIR__<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;\/app.log&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string single-quoted-string\">&#039;echo&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">EchoLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token keyword\">default<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">InvalidArgumentException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string double-quoted-string\">&#034;\u672a\u77e5\u7684\u65e5\u5fd7\u7c7b\u578b: <span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token variable\">$type<\/span><span class=\"token punctuation\">}<\/span><\/span>&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token variable\">$logger<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name static-context\">LoggerFactory<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;file&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$logger<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;\u7528\u6237\u767b\u5f55\u6210\u529f&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f18\u70b9&#xff1a;\u8c03\u7528\u65b9\u53ea\u9700\u5173\u5fc3\u7c7b\u578b\u5b57\u7b26\u4e32&#xff0c;\u521b\u5efa\u903b\u8f91\u96c6\u4e2d\u5728\u4e00\u5904\u3002<\/p>\n<p>\u7f3a\u70b9&#xff1a;\u65b0\u589e\u7c7b\u578b\u5fc5\u987b\u4fee\u6539 LoggerFactory&#xff0c;\u8fdd\u53cd\u5f00\u95ed\u539f\u5219&#xff1b;\u5de5\u5382\u7c7b\u4f1a\u968f\u7740\u7c7b\u578b\u589e\u591a\u800c\u81a8\u80c0\u3002<\/p>\n<h3>4. \u5de5\u5382\u65b9\u6cd5<\/h3>\n<p>\u5de5\u5382\u65b9\u6cd5&#xff08;Factory Method&#xff09;\u628a\u300c\u521b\u5efa\u54ea\u4e2a\u5177\u4f53\u4ea7\u54c1\u300d\u7684\u51b3\u5b9a\u6743\u4e0b\u653e\u7ed9\u5b50\u7c7b&#xff0c;\u4ece\u800c\u8ba9\u65b0\u589e\u4ea7\u54c1\u65e0\u9700\u4fee\u6539\u5df2\u6709\u5de5\u5382\u3002<\/p>\n<p><span class=\"token delimiter important\">&lt;?php<\/span><\/p>\n<p><span class=\"token keyword\">abstract<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">LoggerFactory<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">abstract<\/span> <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">createLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Logger<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">createLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">FileLoggerFactory<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LoggerFactory<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">createLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Logger<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FileLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">__DIR__<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;\/app.log&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">EchoLoggerFactory<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LoggerFactory<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">createLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Logger<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">EchoLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token variable\">$factory<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FileLoggerFactory<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$factory<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;\u8ba2\u5355\u521b\u5efa\u6210\u529f&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f18\u70b9&#xff1a;\u65b0\u589e\u65e5\u5fd7\u7c7b\u578b\u53ea\u9700\u65b0\u589e\u4e00\u4e2a\u5de5\u5382\u5b50\u7c7b&#xff0c;\u7b26\u5408\u5f00\u95ed\u539f\u5219\u3002<\/p>\n<p>\u7f3a\u70b9&#xff1a;\u7c7b\u7684\u6570\u91cf\u6210\u500d\u589e\u957f&#xff0c;\u6bcf\u589e\u52a0\u4e00\u4e2a\u4ea7\u54c1\u5c31\u8981\u589e\u52a0\u4e00\u4e2a\u5de5\u5382\u3002<\/p>\n<h3>5. \u62bd\u8c61\u5de5\u5382\u6a21\u5f0f<\/h3>\n<p>\u5f53\u4ea7\u54c1\u4e0d\u6b62\u4e00\u4e2a\u7ef4\u5ea6\u65f6&#xff08;\u4f8b\u5982\u300c\u65e5\u5fd7\u8bb0\u5f55\u5668 &#043; \u65e5\u5fd7\u683c\u5f0f\u5316\u5668\u300d&#xff09;&#xff0c;\u62bd\u8c61\u5de5\u5382&#xff08;Abstract Factory&#xff09;\u5c31\u6d3e\u4e0a\u7528\u573a\u4e86\u3002\u5b83\u7528\u4e8e\u521b\u5efa\u4e00\u7cfb\u5217\u76f8\u5173\u6216\u76f8\u4e92\u4f9d\u8d56\u7684\u5bf9\u8c61\u3002<\/p>\n<p><span class=\"token delimiter important\">&lt;?php<\/span><\/p>\n<p><span class=\"token keyword\">interface<\/span> <span class=\"token class-name-definition class-name\">Formatter<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">format<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">string<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">JsonFormatter<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Formatter<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">format<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">string<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token function\">json_encode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;msg&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string single-quoted-string\">&#039;time&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token function\">date<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;c&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">JSON_UNESCAPED_UNICODE<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">PlainFormatter<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Formatter<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">format<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">string<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string single-quoted-string\">&#039;[&#039;<\/span> <span class=\"token operator\">.<\/span> <span class=\"token function\">date<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;Y-m-d H:i:s&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;] &#039;<\/span> <span class=\"token operator\">.<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">interface<\/span> <span class=\"token class-name-definition class-name\">LoggerAbstractFactory<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">createLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Logger<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">createFormatter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Formatter<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">FileLoggerAbstractFactory<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">LoggerAbstractFactory<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">createLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Logger<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FileLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">__DIR__<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;\/app.log&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">createFormatter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Formatter<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PlainFormatter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">EchoLoggerAbstractFactory<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">LoggerAbstractFactory<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">createLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Logger<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token 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markdown-node-label\"><\/p>\n<p>&#043;createLogger() : Logger<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>&#043;createFormatter() : Formatter<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>FileLoggerAbstractFactory<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>&#043;createLogger() : Logger<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>&#043;createFormatter() : Formatter<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>EchoLoggerAbstractFactory<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>&#043;createLogger() : Logger<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>&#043;createFormatter() : Formatter<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>\u00abinterface\u00bb<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>Logger<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>&#043;log(message) : void<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>\u00abinterface\u00bb<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>Formatter<\/p>\n<p><\/span><span class=\"nodeLabel markdown-node-label\"><\/p>\n<p>&#043;format(message) : string<\/p>\n<p><\/span><\/p>\n<h3>6. \u5355\u4f8b\u6a21\u5f0f\u5b9e\u73b0\u4e0e\u5f0a\u7aef<\/h3>\n<p>\u5355\u4f8b\u6a21\u5f0f&#xff08;Singleton&#xff09;\u4fdd\u8bc1\u4e00\u4e2a\u7c7b\u53ea\u6709\u4e00\u4e2a\u5b9e\u4f8b&#xff0c;\u5e76\u63d0\u4f9b\u5168\u5c40\u8bbf\u95ee\u70b9\u3002<\/p>\n<p><span class=\"token delimiter important\">&lt;?php<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">Config<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token operator\">?<\/span><span class=\"token class-name type-declaration\">Config<\/span> <span class=\"token variable\">$instance<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">null<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword type-declaration\">array<\/span> <span class=\"token variable\">$data<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">__construct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">__clone<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">__wakeup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">RuntimeException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;\u7981\u6b62\u53cd\u5e8f\u5217\u5316\u5355\u4f8b&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">self<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword static-context\">self<\/span><span class=\"token operator\">::<\/span><span class=\"token variable\">$instance<\/span> <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token constant\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  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class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$key<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword type-hint\">mixed<\/span> <span class=\"token variable\">$value<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">data<\/span><span class=\"token punctuation\">[<\/span><span class=\"token variable\">$key<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$value<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$key<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword type-hint\">mixed<\/span> <span class=\"token variable\">$default<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">mixed<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">data<\/span><span class=\"token punctuation\">[<\/span><span class=\"token variable\">$key<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">??<\/span> <span class=\"token variable\">$default<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token class-name static-context\">Config<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">set<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;app_name&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string single-quoted-string\">&#039;demo&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">echo<\/span> <span class=\"token class-name static-context\">Config<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;app_name&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5b9e\u73b0\u8981\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u6784\u9020\u51fd\u6570\u79c1\u6709\u5316&#xff0c;\u7981\u6b62\u5916\u90e8 new\u3002<\/li>\n<li>\u79c1\u6709\u5316 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rect,#mermaid-svg-JUD0RnL8NBWqPRrx .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-JUD0RnL8NBWqPRrx .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-JUD0RnL8NBWqPRrx .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-JUD0RnL8NBWqPRrx :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/p>\n<p>\u662f<\/p>\n<p><\/span><span class=\"edgeLabel\"><\/p>\n<p>\u5426<\/p>\n<p><\/span><span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/p>\n<p>\u6784\u9020\u51fd\u6570\u79c1\u6709&#xff0c;\u88ab\u62e6\u622a<\/p>\n<p><\/span><span class=\"edgeLabel\"><\/p>\n<p>__clone \u79c1\u6709&#xff0c;\u88ab\u62e6\u622a<\/p>\n<p><\/span><span class=\"edgeLabel\"><\/p>\n<p>__wakeup \u629b\u5f02\u5e38<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u8c03\u7528 Config::getInstance()<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>$instance \u662f\u5426\u4e3a null<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>new self() \u5e76\u8d4b\u503c\u7ed9\u9759\u6001\u5c5e\u6027<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u76f4\u63a5\u8fd4\u56de\u5df2\u6709\u5b9e\u4f8b<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u8fd4\u56de\u552f\u4e00\u5b9e\u4f8b<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u5916\u90e8 new<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>\u5931\u8d25<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>clone \u5bf9\u8c61<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>unserialize \u53cd\u5e8f\u5217\u5316<\/p>\n<p><\/span><\/p>\n<h3>7. \u4f9d\u8d56\u6ce8\u5165\u66ff\u4ee3\u5355\u4f8b<\/h3>\n<p>\u4f9d\u8d56\u6ce8\u5165&#xff08;Dependency Injection&#xff09;\u628a\u300c\u83b7\u53d6\u4f9d\u8d56\u300d\u53d8\u6210\u300c\u63a5\u6536\u4f9d\u8d56\u300d&#xff0c;\u8ba9\u4f9d\u8d56\u5173\u7cfb\u663e\u5f0f\u5316&#xff0c;\u540c\u65f6\u4fdd\u7559\u300c\u53ea\u521b\u5efa\u4e00\u6b21\u300d\u7684\u80fd\u529b\u2014\u2014\u7531\u5bb9\u5668\u8d1f\u8d23\u751f\u547d\u5468\u671f\u7ba1\u7406\u3002<\/p>\n<p><span class=\"token delimiter important\">&lt;?php<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">Config<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">__construct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">private<\/span> <span class=\"token keyword type-declaration\">array<\/span> <span class=\"token variable\">$data<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$key<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword type-hint\">mixed<\/span> <span class=\"token variable\">$default<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">mixed<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">data<\/span><span class=\"token punctuation\">[<\/span><span class=\"token variable\">$key<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">??<\/span> <span class=\"token variable\">$default<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">UserService<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">__construct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">private<\/span> <span class=\"token class-name type-declaration\">Config<\/span> <span class=\"token variable\">$config<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$name<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">string<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token variable\">$appName<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">config<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;app_name&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string single-quoted-string\">&#039;app&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string double-quoted-string\">&#034;<span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token variable\">$appName<\/span><span class=\"token punctuation\">}<\/span><\/span>: \u7528\u6237 <span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token variable\">$name<\/span><span class=\"token punctuation\">}<\/span><\/span> \u6ce8\u518c\u6210\u529f&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7b80\u6613\u5bb9\u5668&#xff1a;\u540c\u4e00\u4e2a key \u53ea\u521b\u5efa\u4e00\u6b21&#xff0c;\u7b49\u4ef7\u4e8e\u300c\u53d7\u63a7\u7684\u5355\u4f8b\u300d<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">Container<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword type-declaration\">array<\/span> <span class=\"token variable\">$instances<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword type-declaration\">array<\/span> <span class=\"token variable\">$bindings<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$id<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword type-hint\">callable<\/span> <span class=\"token variable\">$resolver<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">bindings<\/span><span class=\"token punctuation\">[<\/span><span class=\"token variable\">$id<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$resolver<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$id<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">mixed<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">isset<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">instances<\/span><span class=\"token punctuation\">[<\/span><span class=\"token variable\">$id<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">instances<\/span><span class=\"token punctuation\">[<\/span><span class=\"token variable\">$id<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">isset<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">bindings<\/span><span class=\"token punctuation\">[<\/span><span class=\"token variable\">$id<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">RuntimeException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string double-quoted-string\">&#034;\u672a\u6ce8\u518c\u7684\u670d\u52a1: <span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token variable\">$id<\/span><span class=\"token punctuation\">}<\/span><\/span>&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">instances<\/span><span class=\"token punctuation\">[<\/span><span class=\"token variable\">$id<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">bindings<\/span><span class=\"token punctuation\">[<\/span><span class=\"token variable\">$id<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token variable\">$container<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Container<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$container<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name static-context\">Config<\/span><span class=\"token operator\">::<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Config<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;app_name&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token string single-quoted-string\">&#039;demo&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$container<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name static-context\">UserService<\/span><span class=\"token operator\">::<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name type-declaration\">Container<\/span> <span class=\"token variable\">$c<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">UserService<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$c<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name static-context\">Config<\/span><span class=\"token operator\">::<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">echo<\/span> <span class=\"token variable\">$container<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name static-context\">UserService<\/span><span class=\"token operator\">::<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;\u5f20\u4e09&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5bf9\u6bd4\u5355\u4f8b&#xff0c;\u4f9d\u8d56\u6ce8\u5165\u7684\u4f18\u52bf\u5728\u4e8e&#xff1a;<\/p>\n<ul>\n<li>\u4f9d\u8d56\u663e\u5f0f\u58f0\u660e\u5728\u6784\u9020\u51fd\u6570\u4e2d&#xff0c;\u9605\u8bfb\u4ee3\u7801\u5373\u53ef\u77e5\u9053\u7c7b\u9700\u8981\u4ec0\u4e48\u3002<\/li>\n<li>\u5355\u5143\u6d4b\u8bd5\u53ef\u4ee5\u76f4\u63a5\u4f20\u5165 mock \u5bf9\u8c61&#xff0c;\u65e0\u9700\u53cd\u5c04\u4fee\u6539\u9759\u6001\u5c5e\u6027\u3002<\/li>\n<li>\u751f\u547d\u5468\u671f\u7531\u5bb9\u5668\u7edf\u4e00\u7ba1\u7406&#xff0c;\u5e38\u9a7b\u5185\u5b58\u573a\u666f\u4e0b\u53ef\u6309\u8bf7\u6c42\u91cd\u5efa\u3002<\/li>\n<\/ul>\n<h3>8. \u5b9e\u9645\u6848\u4f8b&#xff1a;\u65e5\u5fd7\u8bb0\u5f55\u5668<\/h3>\n<p>\u628a\u524d\u9762\u7684\u5185\u5bb9\u4e32\u8d77\u6765&#xff0c;\u505a\u4e00\u4e2a\u652f\u6301\u591a\u9a71\u52a8\u3001\u53ef\u6ce8\u5165\u3001\u53ef\u6d4b\u8bd5\u7684\u65e5\u5fd7\u8bb0\u5f55\u5668\u3002<\/p>\n<p><span class=\"token delimiter important\">&lt;?php<\/span><\/p>\n<p><span class=\"token keyword\">interface<\/span> <span class=\"token class-name-definition class-name\">Logger<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$level<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">FileLogger<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Logger<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">__construct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">private<\/span> <span class=\"token keyword type-declaration\">string<\/span> <span class=\"token variable\">$path<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$level<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token variable\">$line<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">sprintf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;[%s] %s: %s%s&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">date<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;Y-m-d H:i:s&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strtoupper<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$level<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">PHP_EOL<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">file_put_contents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">path<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">$line<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">FILE_APPEND<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">NullLogger<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Logger<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$level<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$message<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6d4b\u8bd5\u73af\u5883\u9759\u9ed8<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">LoggerFactory<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">string<\/span> <span class=\"token variable\">$driver<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword type-hint\">array<\/span> <span class=\"token variable\">$options<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token class-name return-type\">Logger<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">match<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token variable\">$driver<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string single-quoted-string\">&#039;file&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FileLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$options<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;path&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">??<\/span> <span class=\"token constant\">__DIR__<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;\/app.log&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string single-quoted-string\">&#039;null&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">NullLogger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token keyword\">default<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">InvalidArgumentException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string double-quoted-string\">&#034;\u4e0d\u652f\u6301\u7684\u65e5\u5fd7\u9a71\u52a8: <span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token variable\">$driver<\/span><span class=\"token punctuation\">}<\/span><\/span>&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name-definition class-name\">OrderService<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">__construct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">private<\/span> <span class=\"token class-name type-declaration\">Logger<\/span> <span class=\"token variable\">$logger<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword type-hint\">int<\/span> <span class=\"token variable\">$orderId<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token keyword return-type\">void<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e1a\u52a1\u903b\u8f91<\/span><br \/>\n        <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token property\">logger<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;info&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string double-quoted-string\">&#034;\u8ba2\u5355 <span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token variable\">$orderId<\/span><span class=\"token punctuation\">}<\/span><\/span> \u521b\u5efa\u6210\u529f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7ec4\u88c5&#xff1a;\u5de5\u5382\u8d1f\u8d23\u521b\u5efa&#xff0c;\u5bb9\u5668\u8d1f\u8d23\u5171\u4eab<\/span><br \/>\n<span class=\"token variable\">$container<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Container<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$container<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name static-context\">Logger<\/span><span class=\"token operator\">::<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token class-name static-context\">LoggerFactory<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string single-quoted-string\">&#039;file&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;path&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token constant\">__DIR__<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;\/order.log&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$container<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name static-context\">OrderService<\/span><span class=\"token operator\">::<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name type-declaration\">Container<\/span> <span class=\"token variable\">$c<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">OrderService<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$c<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name static-context\">Logger<\/span><span class=\"token operator\">::<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token variable\">$container<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name static-context\">OrderService<\/span><span class=\"token operator\">::<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1001<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u4e2a\u6848\u4f8b\u4f53\u73b0\u4e86\u4e09\u8005\u7684\u5206\u5de5&#xff1a;<\/p>\n<ul>\n<li>\u5de5\u5382&#xff1a;\u5c4f\u853d FileLogger \u7684\u6784\u9020\u7ec6\u8282&#xff0c;\u8c03\u7528\u65b9\u53ea\u4f20\u9a71\u52a8\u540d\u3002<\/li>\n<li>\u5bb9\u5668&#xff08;\u53d7\u63a7\u5355\u4f8b&#xff09;&#xff1a;\u4fdd\u8bc1\u6574\u4e2a\u8bf7\u6c42\u5185\u53ea\u521b\u5efa\u4e00\u4e2a\u65e5\u5fd7\u5b9e\u4f8b&#xff0c;\u907f\u514d\u91cd\u590d\u6253\u5f00\u6587\u4ef6\u53e5\u67c4\u3002<\/li>\n<li>\u4f9d\u8d56\u6ce8\u5165&#xff1a;OrderService \u4e0d\u5173\u5fc3\u65e5\u5fd7\u4ece\u54ea\u6765&#xff0c;\u6d4b\u8bd5\u65f6\u6ce8\u5165 NullLogger \u5373\u53ef\u3002<\/li>\n<\/ul>\n<p>\u6574\u4e2a\u6848\u4f8b\u7684\u7ec4\u88c5\u4e0e\u8c03\u7528\u94fe\u8def\u5982\u4e0b&#xff1a;<\/p>\n<p>&#034;OrderService&#034;&#034;FileLogger&#034;&#034;LoggerFactory&#034;&#034;Container&#034;&#034;\u8c03\u7528\u65b9&#034;&#034;OrderService&#034;&#034;FileLogger&#034;&#034;LoggerFactory&#034;&#034;Container&#034;&#034;\u8c03\u7528\u65b9&#034;#mermaid-svg-h0uEhHi1cmtSqUpF{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-h0uEhHi1cmtSqUpF .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-h0uEhHi1cmtSqUpF .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-h0uEhHi1cmtSqUpF .error-icon{fill:#552222;}#mermaid-svg-h0uEhHi1cmtSqUpF .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-h0uEhHi1cmtSqUpF .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-h0uEhHi1cmtSqUpF .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-h0uEhHi1cmtSqUpF .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-h0uEhHi1cmtSqUpF .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-h0uEhHi1cmtSqUpF .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-h0uEhHi1cmtSqUpF .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-h0uEhHi1cmtSqUpF .marker{fill:#333333;stroke:#333333;}#mermaid-svg-h0uEhHi1cmtSqUpF .marker.cross{stroke:#333333;}#mermaid-svg-h0uEhHi1cmtSqUpF svg{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-h0uEhHi1cmtSqUpF p{margin:0;}#mermaid-svg-h0uEhHi1cmtSqUpF .actor{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-h0uEhHi1cmtSqUpF text.actor&gt;tspan{fill:black;stroke:none;}#mermaid-svg-h0uEhHi1cmtSqUpF .actor-line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);}#mermaid-svg-h0uEhHi1cmtSqUpF .innerArc{stroke-width:1.5;stroke-dasharray:none;}#mermaid-svg-h0uEhHi1cmtSqUpF .messageLine0{stroke-width:1.5;stroke-dasharray:none;stroke:#333;}#mermaid-svg-h0uEhHi1cmtSqUpF .messageLine1{stroke-width:1.5;stroke-dasharray:2,2;stroke:#333;}#mermaid-svg-h0uEhHi1cmtSqUpF #arrowhead path{fill:#333;stroke:#333;}#mermaid-svg-h0uEhHi1cmtSqUpF .sequenceNumber{fill:white;}#mermaid-svg-h0uEhHi1cmtSqUpF #sequencenumber{fill:#333;}#mermaid-svg-h0uEhHi1cmtSqUpF #crosshead path{fill:#333;stroke:#333;}#mermaid-svg-h0uEhHi1cmtSqUpF .messageText{fill:#333;stroke:none;}#mermaid-svg-h0uEhHi1cmtSqUpF .labelBox{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-h0uEhHi1cmtSqUpF .labelText,#mermaid-svg-h0uEhHi1cmtSqUpF .labelText&gt;tspan{fill:black;stroke:none;}#mermaid-svg-h0uEhHi1cmtSqUpF .loopText,#mermaid-svg-h0uEhHi1cmtSqUpF .loopText&gt;tspan{fill:black;stroke:none;}#mermaid-svg-h0uEhHi1cmtSqUpF .loopLine{stroke-width:2px;stroke-dasharray:2,2;stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);}#mermaid-svg-h0uEhHi1cmtSqUpF .note{stroke:#aaaa33;fill:#fff5ad;}#mermaid-svg-h0uEhHi1cmtSqUpF .noteText,#mermaid-svg-h0uEhHi1cmtSqUpF .noteText&gt;tspan{fill:black;stroke:none;}#mermaid-svg-h0uEhHi1cmtSqUpF .activation0{fill:#f4f4f4;stroke:#666;}#mermaid-svg-h0uEhHi1cmtSqUpF .activation1{fill:#f4f4f4;stroke:#666;}#mermaid-svg-h0uEhHi1cmtSqUpF .activation2{fill:#f4f4f4;stroke:#666;}#mermaid-svg-h0uEhHi1cmtSqUpF .actorPopupMenu{position:absolute;}#mermaid-svg-h0uEhHi1cmtSqUpF .actorPopupMenuPanel{position:absolute;fill:#ECECFF;box-shadow:0px 8px 16px 0px rgba(0,0,0,0.2);filter:drop-shadow(3px 5px 2px rgb(0 0 0 \/ 0.4));}#mermaid-svg-h0uEhHi1cmtSqUpF .actor-man line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-h0uEhHi1cmtSqUpF .actor-man circle,#mermaid-svg-h0uEhHi1cmtSqUpF line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;stroke-width:2px;}#mermaid-svg-h0uEhHi1cmtSqUpF :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}get(OrderService::class)\u68c0\u67e5 instances \u7f13\u5b58new OrderService(logger)create(&#039;file&#039;, options)new FileLogger(path)\u8fd4\u56de Logger \u5b9e\u4f8b\u8fd4\u56de OrderServicecreate(1001)log(&#039;info&#039;, &#039;\u8ba2\u5355 1001 \u521b\u5efa\u6210\u529f&#039;)<\/p>\n<h3>9. 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