{"id":47230,"date":"2024-12-02T14:15:44","date_gmt":"2024-12-02T06:15:44","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47230\/"},"modified":"2024-12-02T14:15:44","modified_gmt":"2024-12-02T06:15:44","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-php-%e5%87%bd%e6%95%b0%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f%e8%a7%a3%e5%86%b3%e5%b8%b8%e8%a7%81%e7%bc%96%e7%a8%8b%e9%97%ae%e9%a2%98%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47230\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 PHP \u51fd\u6570\u8bbe\u8ba1\u6a21\u5f0f\u89e3\u51b3\u5e38\u89c1\u7f16\u7a0b\u95ee\u9898\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u4f7f\u7528 PHP 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PHP \u5355\u4f8b\u6a21\u5f0f\u7684\u4f8b\u5b50\uff1a<\/p>\n<pre>class Database\n{\n    private static $instance;\n\n    private function __construct()\n    {\n        \/\/ \u79c1\u6709\u6784\u9020\u51fd\u6570\u9632\u6b62\u76f4\u63a5\u5b9e\u4f8b\u5316\n    }\n\n    public static function getInstance()\n    {\n        if (self::$instance === null) {\n            self::$instance = new self();\n        }\n\n        return self::$instance;\n    }\n\n    \/\/ \u5176\u4f59\u6570\u636e\u5e93\u64cd\u4f5c...\n}\n\n\/\/ \u4f7f\u7528\u5355\u4f8b\u6a21\u5f0f\n$database = Database::getInstance();\n$database-&gt;connect();\n$database-&gt;query(\"SELECT * FROM users\");<\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528\u5355\u4f8b\u6a21\u5f0f\uff0c\u60a8\u53ef\u4ee5\u786e\u4fdd\u53ea\u6709\u4e00\u4e2a\u6570\u636e\u5e93\u8fde\u63a5\u5b58\u5728\uff0c\u4ece\u800c\u907f\u514d\u5e76\u53d1\u95ee\u9898\u3002<\/p>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>PHP 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