{"id":3021,"date":"2025-03-19T22:06:37","date_gmt":"2025-03-19T14:06:37","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3021"},"modified":"2025-03-19T22:06:37","modified_gmt":"2025-03-19T14:06:37","slug":"php-%e5%ae%8c%e6%95%b4%e8%a1%a8%e5%8d%95%e5%ae%9e%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/19\/php-%e5%ae%8c%e6%95%b4%e8%a1%a8%e5%8d%95%e5%ae%9e%e4%be%8b\/","title":{"rendered":"PHP \u5b8c\u6574\u8868\u5355\u5b9e\u4f8b"},"content":{"rendered":"\n<p>\u5728 Web \u5f00\u53d1\u4e2d\uff0c\u8868\u5355\u5904\u7406\u662f\u975e\u5e38\u5e38\u89c1\u7684\u4efb\u52a1\u3002\u4e00\u4e2a\u5b8c\u6574\u7684\u8868\u5355\u901a\u5e38\u5305\u542b\u591a\u4e2a\u8f93\u5165\u5b57\u6bb5\uff0c\u5982\u6587\u672c\u6846\u3001\u90ae\u7bb1\u3001\u5bc6\u7801\u3001\u5355\u9009\u6309\u94ae\u3001\u590d\u9009\u6846\u7b49\u3002\u901a\u8fc7\u8868\u5355\uff0c\u7528\u6237\u53ef\u4ee5\u5411\u670d\u52a1\u5668\u63d0\u4ea4\u6570\u636e\uff0c\u670d\u52a1\u5668\u53ef\u4ee5\u5bf9\u8fd9\u4e9b\u6570\u636e\u8fdb\u884c\u9a8c\u8bc1\u3001\u5904\u7406\u5e76\u8fd4\u56de\u53cd\u9988\u3002<\/p>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u5b9e\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u5c55\u793a\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u5b57\u6bb5\uff08\u5982\u59d3\u540d\u3001\u90ae\u7bb1\u3001\u5bc6\u7801\u3001\u5e74\u9f84\u548c\u6027\u522b\uff09\u7684\u8868\u5355\uff0c\u5e76\u8fdb\u884c\u9a8c\u8bc1\u548c\u6570\u636e\u5904\u7406\u3002\u6211\u4eec\u5c06\u6db5\u76d6\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>HTML \u8868\u5355\u7684\u521b\u5efa<\/strong>\u3002<\/li>\n\n\n\n<li><strong>PHP \u540e\u7aef\u9a8c\u8bc1\u5904\u7406<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u524d\u7aef\u548c\u540e\u7aef\u9a8c\u8bc1\u7ed3\u5408<\/strong>\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1\ufe0f\u20e3 HTML \u8868\u5355<\/strong><\/h2>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u5305\u542b\u59d3\u540d\u3001\u90ae\u7bb1\u3001\u5bc6\u7801\u3001\u5e74\u9f84\u548c\u6027\u522b\u7b49\u5b57\u6bb5\u7684\u8868\u5355\u793a\u4f8b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;!DOCTYPE html&gt;\n&lt;html lang=\"zh\"&gt;\n&lt;head&gt;\n    &lt;meta charset=\"UTF-8\"&gt;\n    &lt;meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"&gt;\n    &lt;title&gt;PHP \u8868\u5355\u9a8c\u8bc1\u5b9e\u4f8b&lt;\/title&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n    &lt;h2&gt;\u6ce8\u518c\u8868\u5355&lt;\/h2&gt;\n    &lt;form action=\"process_form.php\" method=\"POST\"&gt;\n        &lt;label for=\"name\"&gt;\u59d3\u540d:&lt;\/label&gt;\n        &lt;input type=\"text\" id=\"name\" name=\"name\" required&gt;&lt;br&gt;&lt;br&gt;\n\n        &lt;label for=\"email\"&gt;\u90ae\u7bb1:&lt;\/label&gt;\n        &lt;input type=\"email\" id=\"email\" name=\"email\" required&gt;&lt;br&gt;&lt;br&gt;\n\n        &lt;label for=\"password\"&gt;\u5bc6\u7801:&lt;\/label&gt;\n        &lt;input type=\"password\" id=\"password\" name=\"password\" required&gt;&lt;br&gt;&lt;br&gt;\n\n        &lt;label for=\"age\"&gt;\u5e74\u9f84:&lt;\/label&gt;\n        &lt;input type=\"number\" id=\"age\" name=\"age\" required&gt;&lt;br&gt;&lt;br&gt;\n\n        &lt;label&gt;\u6027\u522b:&lt;\/label&gt;\n        &lt;input type=\"radio\" id=\"male\" name=\"gender\" value=\"male\" required&gt;\n        &lt;label for=\"male\"&gt;\u7537&lt;\/label&gt;\n        &lt;input type=\"radio\" id=\"female\" name=\"gender\" value=\"female\" required&gt;\n        &lt;label for=\"female\"&gt;\u5973&lt;\/label&gt;&lt;br&gt;&lt;br&gt;\n\n        &lt;input type=\"submit\" value=\"\u63d0\u4ea4\"&gt;\n    &lt;\/form&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u5b57\u6bb5\u8bf4\u660e\uff1a<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u59d3\u540d<\/strong>\uff1a\u6587\u672c\u6846\uff0c<code>required<\/code> \u8868\u793a\u5fc5\u586b\u3002<\/li>\n\n\n\n<li><strong>\u90ae\u7bb1<\/strong>\uff1a\u90ae\u7bb1\u683c\u5f0f\u8f93\u5165\u6846\uff0c<code>required<\/code> \u8868\u793a\u5fc5\u586b\u3002<\/li>\n\n\n\n<li><strong>\u5bc6\u7801<\/strong>\uff1a\u5bc6\u7801\u8f93\u5165\u6846\uff0c<code>required<\/code> \u8868\u793a\u5fc5\u586b\u3002<\/li>\n\n\n\n<li><strong>\u5e74\u9f84<\/strong>\uff1a\u6570\u5b57\u8f93\u5165\u6846\uff0c<code>required<\/code> \u8868\u793a\u5fc5\u586b\u3002<\/li>\n\n\n\n<li><strong>\u6027\u522b<\/strong>\uff1a\u5355\u9009\u6309\u94ae\uff0c<code>required<\/code> \u8868\u793a\u5fc5\u586b\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2\ufe0f\u20e3 PHP \u540e\u7aef\u5904\u7406\u4e0e\u9a8c\u8bc1<\/strong><\/h2>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u5728 <code>process_form.php<\/code> \u6587\u4ef6\u4e2d\uff0c\u6211\u4eec\u5c06\u5904\u7406\u8868\u5355\u6570\u636e\u5e76\u8fdb\u884c\u670d\u52a1\u5668\u7aef\u9a8c\u8bc1\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;?php\n\/\/ \u68c0\u67e5\u662f\u5426\u901a\u8fc7 POST \u8bf7\u6c42\u63d0\u4ea4\u6570\u636e\nif ($_SERVER&#91;\"REQUEST_METHOD\"] == \"POST\") {\n    \/\/ \u5b9a\u4e49\u53d8\u91cf\u5e76\u521d\u59cb\u5316\u4e3a\u7a7a\n    $name = $email = $password = $age = $gender = \"\";\n    $errors = &#91;];\n\n    \/\/ \u59d3\u540d\u9a8c\u8bc1\n    if (empty($_POST&#91;\"name\"])) {\n        $errors&#91;] = \"\u59d3\u540d\u662f\u5fc5\u586b\u9879\uff01\";\n    } else {\n        $name = test_input($_POST&#91;\"name\"]);\n    }\n\n    \/\/ \u90ae\u7bb1\u9a8c\u8bc1\n    if (empty($_POST&#91;\"email\"])) {\n        $errors&#91;] = \"\u90ae\u7bb1\u662f\u5fc5\u586b\u9879\uff01\";\n    } else {\n        $email = test_input($_POST&#91;\"email\"]);\n        if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {\n            $errors&#91;] = \"\u8bf7\u8f93\u5165\u6709\u6548\u7684\u90ae\u7bb1\u5730\u5740\uff01\";\n        }\n    }\n\n    \/\/ \u5bc6\u7801\u9a8c\u8bc1\n    if (empty($_POST&#91;\"password\"])) {\n        $errors&#91;] = \"\u5bc6\u7801\u662f\u5fc5\u586b\u9879\uff01\";\n    } else {\n        $password = test_input($_POST&#91;\"password\"]);\n    }\n\n    \/\/ \u5e74\u9f84\u9a8c\u8bc1\n    if (empty($_POST&#91;\"age\"])) {\n        $errors&#91;] = \"\u5e74\u9f84\u662f\u5fc5\u586b\u9879\uff01\";\n    } else {\n        $age = test_input($_POST&#91;\"age\"]);\n        if (!filter_var($age, FILTER_VALIDATE_INT)) {\n            $errors&#91;] = \"\u8bf7\u8f93\u5165\u6709\u6548\u7684\u5e74\u9f84\uff01\";\n        }\n    }\n\n    \/\/ \u6027\u522b\u9a8c\u8bc1\n    if (empty($_POST&#91;\"gender\"])) {\n        $errors&#91;] = \"\u6027\u522b\u662f\u5fc5\u586b\u9879\uff01\";\n    } else {\n        $gender = test_input($_POST&#91;\"gender\"]);\n    }\n\n    \/\/ \u6570\u636e\u6e05\u7406\u51fd\u6570\n    function test_input($data) {\n        $data = trim($data);             \/\/ \u53bb\u6389\u524d\u540e\u7a7a\u683c\n        $data = stripslashes($data);     \/\/ \u5220\u9664\u53cd\u659c\u6760\n        $data = htmlspecialchars($data); \/\/ \u9632\u6b62 XSS\n        return $data;\n    }\n\n    \/\/ \u663e\u793a\u9a8c\u8bc1\u7ed3\u679c\n    if (empty($errors)) {\n        echo \"\u2705 \u8868\u5355\u63d0\u4ea4\u6210\u529f\uff01&lt;br&gt;\";\n        echo \"\u59d3\u540d: $name &lt;br&gt;\";\n        echo \"\u90ae\u7bb1: $email &lt;br&gt;\";\n        echo \"\u5bc6\u7801: $password &lt;br&gt;\";\n        echo \"\u5e74\u9f84: $age &lt;br&gt;\";\n        echo \"\u6027\u522b: $gender &lt;br&gt;\";\n    } else {\n        foreach ($errors as $error) {\n            echo \"\u274c $error &lt;br&gt;\";\n        }\n    }\n}\n?&gt;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u4ee3\u7801\u89e3\u8bfb\uff1a<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8868\u5355\u6570\u636e\u63a5\u6536<\/strong>\uff1a\u4f7f\u7528 <code>$_POST<\/code> \u83b7\u53d6\u8868\u5355\u63d0\u4ea4\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u6e05\u7406<\/strong>\uff1a<code>test_input()<\/code> \u51fd\u6570\u7528\u4e8e\u53bb\u9664\u7528\u6237\u8f93\u5165\u7684\u591a\u4f59\u7a7a\u683c\u3001\u53cd\u659c\u6760\u548c HTML \u7279\u6b8a\u5b57\u7b26\u3002<\/li>\n\n\n\n<li><strong>\u9a8c\u8bc1\u5fc5\u586b\u5b57\u6bb5<\/strong>\uff1a\u901a\u8fc7 <code>empty()<\/code> \u5224\u65ad\u5b57\u6bb5\u662f\u5426\u4e3a\u7a7a\uff0c<code>filter_var()<\/code> \u7528\u4e8e\u9a8c\u8bc1\u90ae\u7bb1\u548c\u5e74\u9f84\u683c\u5f0f\u3002<\/li>\n\n\n\n<li><strong>\u9519\u8bef\u5904\u7406<\/strong>\uff1a\u5982\u679c\u6709\u9519\u8bef\uff08\u5982\u5b57\u6bb5\u4e3a\u7a7a\u6216\u683c\u5f0f\u4e0d\u6b63\u786e\uff09\uff0c\u5c06\u9519\u8bef\u4fe1\u606f\u5b58\u50a8\u5728 <code>$errors<\/code> \u6570\u7ec4\u4e2d\uff0c\u5e76\u5728\u9875\u9762\u4e0a\u663e\u793a\u3002<\/li>\n\n\n\n<li><strong>\u663e\u793a\u63d0\u4ea4\u6570\u636e<\/strong>\uff1a\u5982\u679c\u6ca1\u6709\u9519\u8bef\uff0c\u663e\u793a\u7528\u6237\u63d0\u4ea4\u7684\u8868\u5355\u6570\u636e\uff1b\u5982\u679c\u6709\u9519\u8bef\uff0c\u663e\u793a\u5177\u4f53\u7684\u9519\u8bef\u6d88\u606f\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3\ufe0f\u20e3 \u5b8c\u6574\u8868\u5355\u6d41\u7a0b\uff1a<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7528\u6237\u586b\u5199\u8868\u5355<\/strong>\uff1a\u7528\u6237\u5728\u524d\u7aef\u8868\u5355\u4e2d\u586b\u5199\u59d3\u540d\u3001\u90ae\u7bb1\u3001\u5bc6\u7801\u3001\u5e74\u9f84\u548c\u6027\u522b\u3002<\/li>\n\n\n\n<li><strong>\u8868\u5355\u63d0\u4ea4<\/strong>\uff1a\u7528\u6237\u70b9\u51fb\u63d0\u4ea4\u6309\u94ae\uff0c\u8868\u5355\u6570\u636e\u901a\u8fc7 <code>POST<\/code> \u65b9\u6cd5\u63d0\u4ea4\u5230\u670d\u52a1\u5668\u7aef\u5904\u7406\u811a\u672c <code>process_form.php<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u670d\u52a1\u5668\u7aef\u9a8c\u8bc1<\/strong>\uff1aPHP \u540e\u7aef\u5bf9\u8868\u5355\u6570\u636e\u8fdb\u884c\u9a8c\u8bc1\uff0c\u786e\u4fdd\u6bcf\u4e2a\u5b57\u6bb5\u7b26\u5408\u8981\u6c42\u3002<\/li>\n\n\n\n<li><strong>\u8fd4\u56de\u53cd\u9988<\/strong>\uff1a\u670d\u52a1\u5668\u8fd4\u56de\u6210\u529f\u6d88\u606f\u6216\u9519\u8bef\u63d0\u793a\uff0c\u544a\u8bc9\u7528\u6237\u8868\u5355\u662f\u5426\u63d0\u4ea4\u6210\u529f\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4\ufe0f\u20e3 \u63d0\u793a\u548c\u6700\u4f73\u5b9e\u8df5<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u524d\u7aef\u548c\u540e\u7aef\u9a8c\u8bc1\u7ed3\u5408\u4f7f\u7528<\/strong>\uff1a\u867d\u7136 HTML5 \u63d0\u4f9b\u4e86\u8868\u5355\u5b57\u6bb5\u9a8c\u8bc1\uff08\u5982 <code>required<\/code>\uff0c<code>type=\"email\"<\/code>\uff09\uff0c\u4f46\u4ecd\u7136\u9700\u8981\u5728\u540e\u7aef\u8fdb\u884c\u9a8c\u8bc1\uff0c\u56e0\u4e3a\u7528\u6237\u53ef\u4ee5\u7ed5\u8fc7\u524d\u7aef\u9a8c\u8bc1\u3002<\/li>\n\n\n\n<li><strong>\u5bc6\u7801\u5b89\u5168\u6027<\/strong>\uff1a\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5bc6\u7801\u5e94\u4f7f\u7528\u9002\u5f53\u7684\u54c8\u5e0c\u7b97\u6cd5\uff08\u5982 <code>password_hash()<\/code> \u548c <code>password_verify()<\/code>\uff09\u6765\u52a0\u5bc6\u5b58\u50a8\uff0c\u800c\u4e0d\u662f\u660e\u6587\u5b58\u50a8\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u6e05\u7406<\/strong>\uff1a\u4f7f\u7528 <code>htmlspecialchars()<\/code> \u7b49\u51fd\u6570\u6e05\u7406\u7528\u6237\u8f93\u5165\u7684\u6570\u636e\uff0c\u9632\u6b62 XSS \u653b\u51fb\u3002<\/li>\n\n\n\n<li><strong>\u7528\u6237\u53cd\u9988<\/strong>\uff1a\u63d0\u4f9b\u6e05\u6670\u4e14\u53cb\u597d\u7684\u9519\u8bef\u6d88\u606f\uff0c\u4ee5\u4fbf\u7528\u6237\u77e5\u9053\u5982\u4f55\u4fee\u6b63\u8f93\u5165\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5\ufe0f\u20e3 \u63a8\u8350\u9605\u8bfb\uff1a<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.php.net\/manual\/zh\/tutorial.forms.php\">PHP \u8868\u5355\u5904\u7406\u6587\u6863<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.php.net\/manual\/zh\/function.filter-var.php\">PHP filter_var() \u51fd\u6570<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.php.net\/manual\/zh\/function.password-hash.php\">PHP \u5bc6\u7801\u52a0\u5bc6\u4e0e\u9a8c\u8bc1<\/a><\/li>\n<\/ul>\n\n\n\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5b8c\u6574\u7684\u8868\u5355\uff0c\u8fdb\u884c\u6709\u6548\u7684\u9a8c\u8bc1\uff0c\u5e76\u786e\u4fdd\u8868\u5355\u6570\u636e\u5b89\u5168\u5730\u4f20\u9012\u5230\u670d\u52a1\u5668\u8fdb\u884c\u5904\u7406\u3002\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Web \u5f00\u53d1\u4e2d\uff0c\u8868\u5355\u5904\u7406\u662f\u975e\u5e38\u5e38\u89c1\u7684\u4efb\u52a1\u3002\u4e00\u4e2a\u5b8c\u6574\u7684\u8868\u5355\u901a\u5e38\u5305\u542b\u591a\u4e2a\u8f93\u5165\u5b57\u6bb5\uff0c\u5982\u6587\u672c\u6846\u3001\u90ae\u7bb1\u3001\u5bc6\u7801\u3001\u5355\u9009\u6309 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