擷取網域名稱

我在看那個ecmall核心檔案ecmall.php，看到這個函數寫得比較清晰，拿出來分享下 function get_domain() { /* 協議 */ $protocol = (isset($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS']) != 'off')) ? 'https://' : 'http://'; /* 網域名稱或IP地址 */ if (isset($_SERVER['HTTP_X_FORWARDED_HOST'])) { $host = $_SERVER['HTTP_X_FORWARDED_HOST']; } elseif (isset($_SERVER['HTTP_HOST'])) { $host = $_SERVER['HTTP_HOST']; } else { /* 連接埠 */ if (isset($_SERVER['SERVER_PORT'])) { $port = ':' . $_SERVER['SERVER_PORT']; if ((':80' == $port && 'http://' == $protocol) || (':443' == $port && 'https://' == $protocol)) { $port = ''; } } else { $port = ''; } if (isset($_SERVER['SERVER_NAME'])) { $host = $_SERVER['SERVER_NAME'] . $port; } elseif (isset($_SERVER['SERVER_ADDR'])) { $host = $_SERVER['SERVER_ADDR'] . $port; } } return $protocol . $host; } 複製代碼

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