{"id":34881,"date":"2025-05-01T06:03:12","date_gmt":"2025-04-30T22:03:12","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/34881.html"},"modified":"2025-05-01T06:03:12","modified_gmt":"2025-04-30T22:03:12","slug":"day24-php%e5%bc%80%e5%8f%91day03-%e6%96%87%e4%bb%b6%e4%b8%8a%e4%bc%a0%e6%a8%a1%e5%9d%97%ef%bc%88%e4%b8%8a%e4%bc%a0%e3%80%81%e6%98%be%e7%a4%ba%ef%bc%89-%e4%b8%89%e7%a7%8d%e6%96%b9%e6%b3%95%e9%aa%8c","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/34881.html","title":{"rendered":"Day24 -php\u5f00\u53d1day03 --\u6587\u4ef6\u4e0a\u4f20\u6a21\u5757\uff08\u4e0a\u4f20\u3001\u663e\u793a\uff09+ \u4e09\u79cd\u65b9\u6cd5\u9a8c\u8bc1\u4e0a\u4f20\u7c7b\u578b\uff08\u9ed1\u767d\u540d\u5355\u3001MIME\uff09\u3010\u4e0a\u7bc7\u3011"},"content":{"rendered":"

\"\"<\/p>\n

\u529f\u80fd\u5b9e\u73b0：\u6587\u4ef6\u540e\u53f0\u7ba1\u7406\u6a21\u5757\u7684\u4e0a\u4f20\u3001\u663e\u793a\u529f\u80fd<\/span><\/h3>\n

=========================\u00a0 \u6587\u4ef6\u4e0a\u4f20\u00a0 \u00a0====================================<\/span><\/p>\n

\u4e00\u3001\u6587\u4ef6\u4e0a\u4f20<\/span><\/h4>\n
1\u3001\u524d\u7aef\u9875\u9762<\/h5>\n

\u8ba9gpt\u53bb\u7ed9\u6211\u4eec\u751f\u6210\u5373\u53ef，\u53ef\u4ee5\u76f4\u63a5\u590d\u7528\u73b0\u6210\u7684<\/p>\n

<!DOCTYPE html>
\n<html lang="en">
\n<head>
\n <meta charset="UTF-8">
\n <title>\u6587\u4ef6\u4e0a\u4f20\u9875\u9762<\/title>
\n <style>
\n body {
\n font-family: Arial, sans-serif;
\n background-color: #f2f2f2;
\n padding: 20px;
\n }
\n h1 {
\n text-align: center;
\n margin-top: 50px;
\n }
\n form {
\n background-color: #fff;
\n border-radius: 10px;
\n padding: 20px;
\n margin-top: 30px;
\n max-width: 600px;
\n margin: 0 auto;
\n }
\n input[type="file"] {
\n margin-top: 20px;
\n margin-bottom: 20px;
\n }
\n button {
\n background-color: #4CAF50;
\n color: #fff;
\n padding: 10px 20px;
\n border: none;
\n border-radius: 5px;
\n cursor: pointer;
\n }
\n button:hover {
\n background-color: #3e8e41;
\n }
\n <\/style>
\n<\/head>
\n<body>
\n<h1>\u6587\u4ef6\u4e0a\u4f20<\/h1>
\n<form action="upload.php" method="POST" enctype="multipart\/form-data">
\n <label for="file">\u9009\u62e9\u6587\u4ef6:<\/label>
\n <br>
\n <input type="file" id="file" name="f">
\n <br>
\n <button type="submit">\u4e0a\u4f20\u6587\u4ef6<\/button>
\n<\/form>
\n<\/body>
\n<\/html>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/p>\n

2\u3001\u6587\u4ef6\u4e0a\u4f20\u540e\u7aef\u90e8\u5206<\/h5>\n
1）\u5148\u5229\u7528\u5168\u5c40\u53d8\u91cffile\u53bb\u63d0\u53d6\u63a5\u6536\u5230\u7684\u6587\u4ef6\u7684\u5404\u7c7b\u4fe1\u606f<\/h6>\n

<?php<\/p>\n

\/\/ \u4ece\u524d\u7aef\u8868\u5355\u63d0\u53d6\u51fa\u6765\u7684\u4fe1\u606f，\u5229\u7528\u5168\u5c40\u53d8\u91cf\u8fdb\u884c\u63d0\u51fa
\n$name=$_FILES['f']['name'];
\n$type=$_FILES['f']['type'];
\n$size=$_FILES['f']['size'];
\n$tmp_name=$_FILES['f']['tmp_name'];
\n$error=$_FILES['f']['error'];<\/p>\n

\"\"<\/p>\n

2）\u8fdb\u884c\u6587\u4ef6\u4e0a\u4f20\u5230\u670d\u52a1\u5668\u7684\u903b\u8f91\u5b9e\u73b0<\/h6>\n

\u5229\u7528\u7684\u662fmove_uploaded_file()，\u4e0a\u4f20\u5230\u670d\u52a1\u5668\u4e0a，\u6211\u8fd9\u91cc\u662f\u672c\u5730\u5f00\u53d1，\u6240\u4ee5\u8bf4\u672c\u673a\u6a21\u62df\u7684\u662f\u670d\u52a1\u5668，\u7ed9\u7684\u8def\u5f84\u662f\u5728\u9879\u76eedemo1\u4e0b\u7684upload\u6587\u4ef6\u5939<\/p>\n

\u6253\u5370\u4e00\u4e0b\u4fe1\u606f\u5bf9\u7167\u662f\u5426\u4e0a\u4f20\u6587\u4ef6\u662f\u5bf9\u5e94\u7684\u3002<\/p>\n

<?php<\/p>\n

\/\/ \u4ece\u524d\u7aef\u8868\u5355\u63d0\u53d6\u51fa\u6765\u7684\u4fe1\u606f，\u5229\u7528\u5168\u5c40\u53d8\u91cf\u8fdb\u884c\u63d0\u51fa
\n$name=$_FILES['f']['name'];
\n$type=$_FILES['f']['type'];
\n$size=$_FILES['f']['size'];
\n$tmp_name=$_FILES['f']['tmp_name'];
\n$error=$_FILES['f']['error'];<\/p>\n

# \u6d4b\u8bd5\u662f\u5426\u6b63\u786e\u63d0\u53d6\u56fe\u7247\u4fe1\u606f
\necho $name."<br>";
\necho $type."<br>";
\necho $size."<br>";
\necho $error."<br>";<\/p>\n

# \u6d4b\u8bd5\u6587\u4ef6\u662f\u5426\u6210\u529f\u4e0a\u4f20\u5230\u670d\u52a1\u5668\u7684\u6307\u5b9a\u6587\u4ef6\u5939\u5185 \u6ce8\u610f：\u9700\u8981\u63d0\u524d\u521b\u5efa\u597d\u6587\u4ef6\u5939；
\nif(move_uploaded_file($tmp_name,'upload\/'.$name)){ \/\/ \u6309\u7167\u6211\u7684\u672c\u5730\u73af\u5883，\u6211\u7684\u670d\u52a1\u5668\u5730\u5740\u5c31\u662f\u6211\u7684php\u9879\u76ee\u5730\u5740
\n echo "\u6587\u4ef6\u5df2\u6210\u529f\u4e0a\u4f20"; \/\/ \u6240\u4ee5\u6211\u9700\u8981\u5728\/demo1\u4e0b\u9762\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5939 \/demo1\/upload
\n}<\/p>\n

?><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\u4f46\u662f\u8fd9\u6837\u975e\u5e38\u4e0d\u5b89\u5168，\u56e0\u4e3a\u7528\u6237\u53ef\u4ee5\u4e0a\u4f20\u4efb\u610f\u7684\u6587\u4ef6\u7c7b\u578b，\u6240\u4ee5\u6211\u4eec\u9700\u8981\u52a0\u5165\u7b5b\u9009\u903b\u8f91（\u9ed1\u767d\u540d\u5355）<\/p>\n

3\u3001\u4e09\u79cd\u6587\u4ef6\u4e0a\u4f20\u7c7b\u578b\u9a8c\u8bc1\u673a\u5236<\/h5>\n
1）**\u9ed1\u540d\u5355**\u903b\u8f91\u5b9e\u73b0<\/h6>\n

\u5982\u679c\u4e0d\u5bf9\u4e0a\u4f20\u7684\u6587\u4ef6\u7c7b\u578b\u8fdb\u884c\u9650\u5236，\u90a3\u4e48\u53ef\u80fd\u4f1a\u6709\u6728\u9a6c\u6587\u4ef6\u88ab\u4e0a\u4f20，\u653b\u51fb\u8005\u53ef\u4ee5\u8fdb\u5165\u670d\u52a1\u5668\u540e\u95e8\u3002<\/p>\n

\u903b\u8f91：\u5c06\u7981\u6b62\u7684\u540e\u7f00\u7c7b\u578b\u5199\u5165\u6570\u7ec4，\u7136\u540e\u6211\u5206\u5272\u670d\u52a1\u5668\u63a5\u6536\u5230\u7684\u6587\u4ef6\u540d，\u53ea\u53d6\u540e\u7f00\u540d，\u7528\u4e00\u4e2a\u53d8\u91cf\u53bb\u63a5\u6536\u4ed6，\u518d\u5c06\u5176\u4e0e\u6570\u7ec4\u4e2d\u7684\u9ed1\u540d\u5355\u540e\u7f00\u8fdb\u884c\u6bd4\u8f83，\u5982\u679c\u5728\u9ed1\u540d\u5355\u5185，\u5219\u63d0\u793a\u7981\u6b62\u4e0a\u4f20\u3002<\/p>\n

$black_ext=array('php','asp','jsp','aspx');
\n\/\/xxx.jpg xxx.png
\n$fenge = explode('.',$name);
\n$exts = end($fenge);
\nif(in_array($exts,$black_ext)){
\n echo '\u975e\u6cd5\u540e\u7f00\u6587\u4ef6'.$exts;
\n}else{
\n move_uploaded_file($tmp_name,'upload\/'.$name);
\n echo '<script>alert("\u4e0a\u4f20\u6210\u529f")<\/script>';
\n}<\/p>\n

\"\"<\/p>\n

\u6d4b\u8bd5\u4e00\u4e0b，\u6210\u529f\u62e6\u622a\u9ed1\u540d\u5355\u5185\u7684\u540e\u7f00\u6587\u4ef6\u4e0a\u4f20\u5230\u670d\u52a1\u5668\u3002<\/p>\n

\"\"<\/p>\n

\u4f46\u662f\u968f\u4e4b\u800c\u6765\u7684\u662f，\u6587\u4ef6\u7c7b\u578b\u592a\u591a\u79cd\u4e86，\u800c\u4e14\u540c\u79cd\u6587\u4ef6\u7c7b\u578b\u6709\u4e0d\u540c\u7684\u540d\u5b57\u4f8b\u5982html2\u3001html4\u7b49\u7b49\u3002\u6240\u4ee5\u66f4\u52a0\u5b89\u5168\u7684\u662f\u5199\u4e00\u4e2a\u767d\u540d\u5355，\u6211\u4eec\u5141\u8bb8\u54ea\u4e9b\u7c7b\u578b\u7684\u901a\u8fc7，\u4e0d\u7b26\u5408\u6761\u4ef6\u7684\u4e00\u5f8b\u62d2\u4e4b\u95e8\u5916\u3002<\/p>\n

2）**\u767d\u540d\u5355**\u903b\u8f91\u5b9e\u73b0\u00a0<\/h6>\n

\u5148\u8fdb\u884c\u6587\u4ef6\u540d\u7684\u5207\u5272，\u7ed9\u4e00\u4e2a\u65b0\u53d8\u91cf\u53bb\u63a5\u6536，\u7136\u540e\u62ff\u65b0\u53d8\u91cf\u53bb\u6211\u4eec\u7684\u767d\u540d\u5355\u6570\u7ec4\u8fdb\u884c\u5bf9\u6bd4，\u82e5\u5728\u5141\u8bb8\u540e\u7f00\u5185，\u5219\u8fdb\u884c\u4e0a\u4f20\u670d\u52a1\u5668\u7684\u64cd\u4f5c；\u5982\u679c\u4e0d\u5728\u8303\u56f4\u5185，\u5219\u63d0\u793a\u975e\u6cd5，\u4e0d\u505a\u4e0a\u4f20\u7684\u64cd\u4f5c<\/p>\n

$allow_ext=array('png','jpg','gif','jpeg');
\n\/\/ xxx.jpg xxx.png
\n$fenge = explode('.',$name);
\n$exts = end($fenge);
\nif(in_array($exts,$allow_ext)) { \/\/\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u8981\u8fdb\u884c\u5224\u65ad\u7684\u53d8\u91cf；\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u5224\u65ad\u7684\u4f9d\u636e
\n move_uploaded_file($tmp_name, 'uoload\/' . $name);
\n echo '<script>alert("\u4e0a\u4f20\u6210\u529f！")<\/script>';
\n}else{
\n echo '\u975e\u6cd5\u540e\u7f00\u6587\u4ef6';
\n}<\/p>\n

\"\"<\/p>\n

\u6d4b\u8bd5：\u63d0\u4ea4\u4e00\u4e2aexe\u6587\u4ef6<\/p>\n

\"\"3）**MIME\u6587\u4ef6\u7c7b\u578b**\u903b\u8f91\u5b9e\u73b0<\/h6>\n

MIME \u7c7b\u578b | \u83dc\u9e1f\u6559\u7a0b<\/p>\n

\"\"<\/p>\n

mime\u5728\u54ea\u91cc\u4f5c\u7528？<\/p>\n

\"\"<\/p>\n

\u6211\u4eec\u5c31\u7ed9\u4e00\u4e2amime\u7c7b\u578b：image\/gif,\u00a0image\/png,\u00a0image\/jpeg \u8fd9\u4e09\u79cd\u5427<\/p>\n

\u6ce8\u610f\u6211\u4eec\u8fd9\u91cc\u7684\u903b\u8f91\u662f\u63d0\u53d6\u4e0a\u4f20\u6587\u4ef6\u7684\u6587\u4ef6\u7c7b\u578b，\u90a3\u4e48\u53ef\u4ee5\u901a\u8fc7\u5168\u5c40\u53d8\u91cffile\u53bb\u6293\u53d6type\u3002<\/p>\n

$allow_ext=array('image\/png','image\/gif','image\/jpeg');
\n\/\/ \u524d\u9762\u6709\u5229\u7528\u5168\u5c40\u53d8\u91cffile\u53bb\u63d0\u53d6\u6587\u4ef6\u7c7b\u578b
\nif(in_array($type,$allow_ext)) { \/\/\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u8981\u8fdb\u884c\u5224\u65ad\u7684\u53d8\u91cf；\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u5224\u65ad\u7684\u4f9d\u636e
\n move_uploaded_file($tmp_name, 'upload\/' . $name);
\n echo '<script>alert("\u4e0a\u4f20\u6210\u529f！")<\/script>';
\n}else{
\n echo '\u975e\u6cd5\u540e\u7f00\u6587\u4ef6.'.$type; \/\/\u7ed9\u4e00\u4e2a\u4e0a\u4f20\u7684\u6587\u4ef6\u7c7b\u578b
\n} <\/p>\n

\"\"\u00a0\"\"<\/p>\n

=========================\u00a0 \u00a0 \u00a0\u00a0\u6587\u4ef6\u663e\u793a\u00a0 \u00a0 \u00a0====================================<\/span><\/p>\n

\u00a0\"\"<\/p>\n

\u4e8c\u3001\u6587\u4ef6\u663e\u793a<\/span><\/h4>\n
1\u3001\u903b\u8f91\u5b9e\u73b0<\/h5>\n

00×1\u3001\u5148\u7ed9\u4e00\u4e2a\u521d\u59cb\u76ee\u5f55\u8fdb\u884c\u8bbf\u95ee\u00a0 \u00a0—-\u5229\u7528get\u65b9\u6cd5\u53bb\u63d0\u53d6url\u91cc\u7684，\u6ca1\u6709\u5c31\u5f53\u524d\u76ee\u5f55<\/p>\n

00×2\u3001\u7ed9\u8fd9\u4e2a\u76ee\u5f55\u4e00\u4e2a\u64cd\u4f5c\u8bb8\u53ef\u00a0 \u00a0 —–\u00a0\u00a0opendir( )\u5b9e\u73b0<\/span><\/p>\n

00×3\u3001\u6253\u5f00\u8fd9\u4e2a\u76ee\u5f55\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 —-opendir( )\u5b9e\u73b0<\/span><\/p>\n

00×4\u3001\u533a\u5206\u6587\u4ef6\u5939\u548c\u6587\u4ef6\u00a0 \u00a0 \u00a0—- is_dir（）\u5b9e\u73b0<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0— \u82e5\u4e3a\u6587\u4ef6，\u5219\u6253\u5370\u6587\u4ef6:\u6587\u4ef6\u540d<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0— \u82e5\u4e3a\u6587\u4ef6\u540d，\u5219\u5229\u7528\u8d85\u94fe\u63a5\u8fdb\u884c\u8def\u5f84\u62fc\u63a5<\/span>\u8df3\u8f6c（\u5c06path=\u6b64\u6587\u4ef6\u5939\u8def\u5f84\u62fc\u63a5\u5230\u539furl\u4e2d，\u5b9e\u73b0\u5bf9\u6587\u4ef6\u5939\u4e0b\u7ea7\u8def\u5f84\u7684\u8bbf\u95ee）<\/p>\n

2\u3001\u4ee3\u7801\u5b9e\u73b0<\/h5>\n

<?php<\/p>\n

\/\/ \u5982\u679c\u521d\u59cburl\u6ca1\u6709path\u53c2\u6570，\u5219\u8def\u5f84\u53d6\u5f53\u524d\u6587\u4ef6\u5939\u4e0b
\n$dir =$_GET['path'] ?? '.\/';<\/p>\n

# 1.\u5b9e\u73b0\u6253\u5f00\u6307\u5b9a\u76ee\u5f55，\u5e76\u663e\u793a\u5176\u6587\u4ef6\/\u6587\u4ef6\u5939\u540d —\u5229\u7528readdir()\u51fd\u6570<\/span>
\nfunction show_file($dir){
\n $d = opendir($dir); \/\/ \u76f8\u5f53\u4e8e\u7ed9d\u4e00\u4e2a\u53ef\u4ee5\u5bf9\u76ee\u5f55\u64cd\u4f5c\u7684\u8bb8\u53ef
\n while(($file = readdir($d)) !== false){ \/\/file\u53d8\u91cf\u63a5\u6536\u7684\u662f\u76ee\u5f55（\u6709d\u64cd\u4f5c\u8bb8\u53ef，\u4e14\u662fdir\u6307\u5411\u7684\u8def\u5f84\u76ee\u5f55);
\n echo $file."<br>"; \/\/ \u540c\u65f6\u6ce8\u610f\u903b\u8f91\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7，！==\u8981\u5927\u4e8e= \u6240\u4ee5\u8981\u52a0\u62ec\u53f7\u7ed9$fil
\n # 2.\u7ee7\u7eed\u8fdb\u884c\u6587\u4ef6\u5939\u548c\u6587\u4ef6\u7684\u5224\u65ad —\u5229\u7528is_dir()\u51fd\u6570<\/span>
\n if(is_dir($file)){
\n # 3.\u5b9e\u73b0\u70b9\u51fb\u6587\u4ef6\u5939\u7ee7\u7eed\u8fdb\u5165\u76ee\u5f55\u7684\u6548\u679c<\/span>
\n \/\/ \u539f\u7406<\/span>：\u5229\u7528\u8d85\u94fe\u63a5\u5728url\u540e\u9762\u589e\u52a0$file\u63a5\u6536\u5230\u7684\u6587\u4ef6\u5939，\u4ece\u800c\u5b9e\u73b0\u4e86url\/path=$file\u7684\u6548\u679c,\u4ece\u800c\u53ef\u4ee5\u67e5\u770b$file\u63a5\u6536\u5230\u7684\u6587\u4ef6\u5939\u4e0b\u9762\u7684\u6587\u4ef6\/\u5b50\u76ee\u5f55
\n echo "\u6587\u4ef6\u5939:"."<a href='?path=$file'>$file<\/a><br>";
\n }else{
\n echo "\u6587\u4ef6:" . $file . "<br>";
\n }
\n }
\n}<\/p>\n

show_file($dir); <\/p>\n

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