{"id":52843,"date":"2025-08-11T20:24:15","date_gmt":"2025-08-11T12:24:15","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/52843.html"},"modified":"2025-08-11T20:24:15","modified_gmt":"2025-08-11T12:24:15","slug":"%e5%be%8c%e7%ab%af%e9%96%8b%e7%99%bc%e6%8a%80%e8%a1%93%e6%95%99%e5%ad%b8%e5%9b%9b-%e6%95%b8%e6%93%9a%e4%ba%a4%e4%ba%92%e5%bb%b6%e4%bc%b8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/52843.html","title":{"rendered":"\u5f8c\u7aef\u958b\u767c\u6280\u8853\u6559\u5b78(\u56db) \u6578\u64da\u4ea4\u4e92\u5ef6\u4f38"},"content":{"rendered":"

\u66f8\u63a5\u4e0a\u56de：\u5f8c\u7aef\u958b\u767c\u6280\u8853\u6559\u5b78(\u4e09) \u8868\u55ae\u63d0\u4ea4\u3001\u6578\u64da\u8655\u7406-CSDN\u535a\u5ba2<\/p>\n

\u5fc5\u8981\u8cc7\u6e90：<\/p>\n

trae\u4e2d\u6587\u7248\u4e0b\u8f09\u7db2\u5740:\u00a0TRAE – The Real AI Engineer<\/p>\n

phpStudy 2018 :\u00a0phpStudy – Windows \u4e00\u952e\u90e8\u7f72 PHP \u5f00\u53d1\u73af\u5883 \u00b7 \u5c0f\u76ae\u51fa\u54c1<\/p>\n

\n

\u524d\u8a00<\/h2>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5927\u5bb6\u597d，\u6211\u662f\u5c0f\u6953\u3002\u66f8\u63a5\u4e0a\u671f\u8aaa\u5230\u7684\u5f8c\u7aef\u6578\u64da\u4ea4\u4e92，\u5206\u5225\u5f9e\u6578\u64da\u63a5\u6536\u3001\u6578\u64da\u8655\u7406\u4ee5\u53ca\u6578\u64da\u5b58\u5132３\u65b9\u9762\u89e3\u8aaa\u3002\u4f46\u5728$_FILES(\u5373\u6587\u4ef6\u4e0a\u50b3)\u7684\u89e3\u8aaa\u4e0a\u53ea\u662f\u7565\u7565\u5e36\u904e\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5176\u5be6$_FILES<\/span>\u8ddf$_GET <\/span>\u548c <\/span>$_POST<\/span>\u7684\u904b\u4f5c\u6846\u67b6\u4e26\u4e0d\u6a23，\u5927\u5bb6\u6703\u767c\u73fe\u53ea\u6709\u9019\u4e9b\u597d\u50cf\u4e26\u4e0d\u80fd\u7d44\u6210\u4e00\u500b\u5b8c\u6574\u7684\u6587\u4ef6\u6578\u64da\u63a5\u6536\u7cfb\u7d71\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u6240\u4ee5\u4eca\u5929\u5c0f\u7de8\u6703\u8ddf\u5927\u5bb6\u5206\u4eab\u5b8c\u6574\u7684\u6587\u4ef6\u6578\u64da\u63a5\u6536\u5340\u584a<\/span>\u662f\u600e\u9ebc\u5f62\u6210，\u6211\u5c07\u6703\u5f9e\u4ee3\u78bc\u610f\u7fa9\u3001\u904b\u4f5c\u908f\u8f2f\u4ee5\u53ca\u8f38\u51fa\u5be6\u4f8b3\u65b9\u9762\u7d66\u5927\u5bb6\u89e3\u8aaa\u3002<\/p>\n

\n

\u76ee\u5f55<\/p>\n

\u524d\u8a00<\/p>\n

\u4e00\u3001$_FILES\u8207$_GET\u00a0& $_POST\u7684\u4e0d\u540c<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 1.1\u00a0 \u7de8\u78bc\u6a21\u5f0f<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 1.2\u00a0 \u6578\u64da\u5b58\u5132\u65b9\u5f0f<\/p>\n

\u4e8c\u3001\u5b8c\u6574\u67b6\u69cb<\/p>\n

\u4e09\u3001\u9032\u968e\u8655\u7406<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 3.1 \u5b89\u5168\u904e\u6ffe\u00a0(\u9632XSS)<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 3.2 \u6578\u64da\u9a57\u8b49<\/p>\n

\u56db\u3001\u5c0f\u7d50<\/p>\n

\n

\"\"\u200b<\/p>\n<\/p>\n

\u4e00\u3001$_FILES<\/span>\u8207$_GET\u00a0<\/span>& $_POST<\/span>\u7684\u4e0d\u540c<\/h2>\n

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

\u00a0 \u00a0 \u00a0 \u00a0 1.1\u00a0 \u7de8\u78bc\u6a21\u5f0f<\/h4>\n

$_POST & $_GET\u00a0: \u63a5\u6536\u7684\u662f\u5b57\u7b26\u4e32\u6578\u64da<\/p>\n

$_FILES : \u63a5\u6536\u7684\u662f2\u9032\u5236\u6587\u4ef6\u6578\u64da<\/p>\n<\/p>\n

\/\/get & post
\n<form action="" method="get\/post">
\n <input type="text\/password">
\n<\/form><\/p>\n

\/\/file
\n<form action="" method="post" enctype="multipart\/form-data"> \/\/\u6578\u64da\u63a5\u6536\u5fc5\u5b9a\u8981\u7528post
\n <input type="file"> \/\/type\u5fc5\u5b9a\u662ffile
\n<\/form> <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u591a\u51fa\u7684enctype="multipart\/form-data"\u662f\u7528\u4f86\u8f49\u63db\u7de8\u78bc\u6a21\u5f0f\u7684，\u4ee5\u96322\u9032\u5236\u6587\u4ef6\u88ab\u8f49\u7fa9\u4e86\u3002<\/p>\n<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 1.2\u00a0 \u6578\u64da\u5b58\u5132\u65b9\u5f0f<\/h4>\n

$_POST & $_GET : \u4ee5\u6578\u7d44\u7684\u65b9\u5f0f\u5b58\u5132，\u53ef\u66f4\u6539\u4e0b\u6a19\u3002<\/p>\n

$_FILES : \u4ee52\u7dad\u6578\u7d44\u7684\u65b9\u5f0f\u5b58\u5132，\u7b2c2\u7dad<\/span>\u7684\u4e0b\u6a19\u4e0d\u53ef\u66f4\u6539<\/p>\n

print_r($_FILES);
\n::\u8f38\u51fa:
\nArray{
\n [file] => Array{ \/\/\u7b2c\u4e00\u7dad，\u4e0b\u6a19\u53ef\u66f4\u6539
\n [name] => '\u6587\u4ef6\u539f\u59cb\u540d' \/\/\u4ee5\u4e0b\u5168\u90fd\u662f\u7b2c2\u7dad，\u4e0b\u6a19\u4e0d\u53ef\u66f4\u6539
\n [type] => 'MIME\u985e\u578b'
\n [tmp_name] => '\u81e8\u6642\u5b58\u5132\u8def\u5f91'
\n [error] => '\u6587\u4ef6\u662f\u5426\u4e0a\u50b3\u6210\u529f' \/\/\u986f\u793a1,2,3,4\u5373\u70ba\u63a5\u6536\u5931\u6557，0\u70ba\u6210\u529f
\n [size] => '\u6587\u4ef6\u5927\u5c0f(\u5b57\u7bc0)'
\n }<\/p>\n

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

\u4e8c\u3001\u5b8c\u6574\u67b6\u69cb<\/h2>\n

[name] => 1.png
\n[type] => image\/png
\n[tmp_name] => C:\\\\Users\\\\Administrator\\\\AppData\\\\Local\\\\Temp\\\\phpCB1D.tmp
\n[error] => 0
\n[size] => 205401<\/p>\n

if($_POST){ \/\/if(\u5047\u689d\u4ef6)=>\u4e0d\u6703\u57f7\u884c\u6307\u4ee4，$_POST\u70ba\u7a7a=\u5047\u689d\u4ef6
\n\u200b$name=$_FILES['file']['name'];
\n\u200b$tmp_name=$FILES['file']['tmp_name'];<\/p>\n

==\u66f4\u6539\u6e90\u6587\u4ef6\u540d\u5b57
\n ::\u53d6\u6587\u4ef6\u5f8c\u7db4\u540d(txt php html\u2026)
\n\u200b\/\/strrchr($name,".");=> \u6a19\u8a18$name\u6700\u53f3\u908a\u7684"."
\n\u200b\/\/substr((\u2026),1) =>\u5f9e\u7b2c\u4e00\u500b\u5b57\u7b26\u958b\u59cb\u622a\u53d6
\n \/\/substr((strrchr($name,".")),1) => \u5f9e$name\u6700\u53f3\u908a\u7684"."\u958b\u59cb\u622a\u53d6\u5b57\u7b26<\/p>\n

\u200b$ext=substr(strrchr($name,"."),1);\/\/\u5f9e"."\u5f8c\u958b\u59cb\u53d6\u5f8c\u7db4\u540d<\/p>\n

\/\/\u751f\u6210\u96a8\u6a5f\u6587\u4ef6\u540d
\n\u200b$file_name=time().rand().".".$ext; \/\/time()=>\u8f38\u5165\u73fe\u5728\u7684\u6642\u9593 | rand()=>\u96a8\u6a5f\u751f\u6210\u5b57\u7b26
\n ::e.g 1234567890.1234567890.png<\/p>\n

==\u8d81\u81e8\u6642\u6587\u4ef6\u5b58\u5728\u7684\u6642\u5019，\u5c07\u5176\u6c38\u4e45\u4fdd\u5b58\u4e0b\u4f86<\/p>\n

\u200b$dir="upload";<\/p>\n

\u200bif(!is_dir($dir)){ \/\/\u5224\u65b7$dir\u662f\u4e0d\u662f\u4e00\u500b\u6587\u4ef6\u593e，\u4e0d\u662f\u7684\u8a71\u518d\u57f7\u884c\u4e0b\u9762\u7684\u547d\u4ee4
\n\u200bmkdir($dir,0777,true);\/\/\u82e5\u6587\u4ef6\u593e\u4e0d\u5b58\u5728，\u6703\u5275\u5efa\u4e00\u500b\u540d\u70ba$dir \u6b0a\u9650\u5168\u958b \u7684\u9012\u6b78\u6587\u4ef6\u593e
\n\u200b}<\/p>\n

\/\/\u7de8\u5beb\u6587\u4ef6\u5b58\u5132\u8def\u5f91
\n\u200b$path=$dir."\/".$file_name; \/\/ upload\/1234567890.1234567890.txt (\u8ddfC D\u76e4\u5dee\u4e0d\u591a)<\/p>\n

\u200bif(!move_upload_file($tmp_name,$path)){ \/\/\u82e5\u6587\u4ef6\u6c92\u79fb\u52d5\u5230\u6307\u5b9a\u8def\u5f91，\u57f7\u884c\u4e0b\u9762\u547d\u4ee4
\n \/\/move_upload_file(\u6587\u4ef6\u540d,\u8981\u79fb\u52d5\u5230\u7684\u8def\u5f91)=> \u79fb\u52d5\u6307\u5b9a\u6587\u4ef6\u5230\u6307\u5b9a\u8def\u5f91
\n\u200becho "\u4e0a\u50b3\u5931\u6557";
\n\u200bexit;\/\/\u5f80\u5f8c\u547d\u4ee4\u4e0d\u518d\u904b\u884c，\u5373\u505c\u6b62\u904b\u884c\u8173\u672c
\n }
\n\u200b} <\/p>\n

1. \u67e5\u770b$_FILES\u662f\u5426\u70ba\u7a7a，\u4e0d\u70ba\u7a7a\u624d\u53ef\u4ee5\u958b\u59cb\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4<\/p>\n

2. \u628a\u6587\u4ef6\u5f8c\u7db4\u53d6\u4e0b\u4f86 (png)<\/p>\n

3. \u96a8\u6a5f\u751f\u6210\u4ee5png\u70ba\u5f8c\u7db4\u7684\u6587\u4ef6\u540d(1234567890.png)<\/p>\n

4. \u67e5\u770b\u6307\u5b9a\u6587\u4ef6\u593e\u662f\u5426\u5b58\u5728，\u4e0d\u5b58\u5728\u5247\u5275\u5efa\u4e00\u500b<\/p>\n

5. \u7de8\u5beb\u6587\u4ef6\u5b58\u5132\u8def\u5f91(\u6587\u4ef6\u593e\u540d+ \/ + \u96a8\u6a5f\u751f\u6210\u7684\u6587\u4ef6\u540d)<\/p>\n

6. \u67e5\u770b\u6587\u4ef6\u662f\u5426\u5df1\u88ab\u79fb\u81f3\u6307\u5b9a\u8def\u5f91\u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u7c21\u55ae\u4f86\u8aaa\u5c31\u662f，\u66f4\u6539\u6e90\u6587\u4ef6\u540d\u5b57，\u4e26\u8d81\u81e8\u6642\u6587\u4ef6\u5b58\u5728\u7684\u6642\u5019，\u628a\u4ed6\u6c38\u4e45\u4fdd\u5b58\u4e0b\u4f86\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u9032\u968e\u8655\u7406<\/h2>\n<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 3.1 \u5b89\u5168\u904e\u6ffe\u00a0(\u9632XSS)<\/h4>\n

$username = htmlspecialchars($username);
\n$email = htmlspecialchars($email);
\n$gender = htmlspecialchars($gender); <\/p>\n

htmlspecialchars() : \u5c07\u7279\u6b8a\u5b57\u7b26\u8f49\u70ba HTML \u5be6\u9ad4（\u9632 XSS）<\/p>\n<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 3.2 \u6578\u64da\u9a57\u8b49<\/h4>\n

filter_var($email, FILTER_VALIDATE_EMAIL) \/\/\u9a57\u8b49\u90f5\u7bb1\u683c\u5f0f<\/p>\n

if (!filter_var($email, FILTER_VALIDATE_EMAIL)) { \/\/\u904e\u6ffe\u7121\u6548\u683c\u5f0f
\n die("\u7121\u6548\u7684\u90f5\u7bb1\u683c\u5f0f！"); \/\/\u7d42\u6b62\u8173\u672c\u4e26\u8fd4\u56de\u932f\u8aa4\u4fe1\u606f
\n }<\/p>\n

\u5176\u4ed6\u904e\u6ffe\u5668:\u00a0\u00a0FILTER_SANITIZE_STRING（\u6e05\u7406\u5b57\u7b26\u4e32）<\/p>\n<\/p>\n

\u56db\u3001\u5c0f\u7d50<\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5927\u5bb6\u53ea\u9700\u8981\u8a18\u4f4f\u5b83\u5011\u7684\u529f\u80fd\u548c\u904b\u4f5c\u908f\u8f2f\u5c31\u53ef\u4ee5\u4e86，\u5be6\u64cd\u53ef\u4ee5\u8b93AI\u5e6b\u5fd9\u5beb\u4ee3\u78bc，\u5177\u9ad4\u7684\u4e4b\u524d\u5df2\u7d93\u8aaa\u904e\u4e86，\u9019\u88e1\u5c31\u4e0d\u591a\u8aaa\u4e86\u3002\u63a5\u6211\u5011\u6703\u958b\u59cb\u7814\u7a76\u5f8c\u7aefpython\u3001\u6578\u64da\u5eabmysql\u4ee5\u53ca\u5206\u6790\u6f0f\u6d1e\u54c8\u3002\u5927\u5bb6\u656c\u8acb\u671f\u5f85\u4e86\u3002<\/p>\n

\n

trae AI\u5beb\u4ee3\u78bc：\u5f8c\u7aef\u958b\u767c\u6280\u8853\u6559\u5b78(\u4e00) [\u96442025\u6700\u65b0\u53ef\u7528 phpstudy2018\u4e0b\u8f09\u93c8\u63a5] -CSDN\u535a\u5ba2<\/p>\n

\u6587\u4ef6\u7ba1\u7406\u5408\u96c6：Linux\u57fa\u790e\u547d\u4ee4\u5408\u96c6\u2014\u2014\u6587\u4ef6\u7ba1\u7406\u7bc7（\u4e00）\u57fa\u790e\u6587\u4ef6\u64cd\u4f5c-CSDN\u535a\u5ba2<\/p>\n

\u6578\u7d44 & if\u6307\u4ee4：\u5f8c\u7aef\u958b\u767c\u6280\u8853\u6559\u5b78(\u4e8c) \u689d\u4ef6\u6307\u4ee4\u3001\u5faa\u74b0\u7d50\u69cb\u3001\u5b9a\u7fa9\u51fd\u6578-CSDN\u535a\u5ba2<\/p>\n","protected":false},"excerpt":{"rendered":"

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