PHP $_SERVER详细用法分析
Argument Result
PHP_SELF Returns the path and filename of the current script
SERVER_PROTOCOL Returns the name and revision of the page-requested protocol
REQUEST_METHOD Returns the request method used to access the page
REQUEST_TIME Returns the timestamp from the beginning of the request
DOCUMENT_ROOT Returns the root directory of the current script
HTTP_REFERER Returns the page address that referred to the current page
HTTP_USER_AGENT Returns the user agent of the header from the current request
REMOTE_ADDR Returns the IP address of the current user
REMOTE_PORT Returns the port of the user's machine that is accessing the page
SCRIPT_FILENAME Returns the absolute filename from the current script
SCRIPT_NAME Returns the path of the current script
<?php教程 if ($_SERVER['REQUEST_METHOD'] == 'GET') { <form action="<?php echo $_SERVER['SCRIPT_NAME'] " method="post"> What is your first name? <input type="text" name="first_name" /> <input type="submit" value="Say Hello" /> </form> <?php } else { echo 'Hello, ' . $_POST['first_name'] . '!'; }
获取用户的IP地址
<?php $address = $_SERVER['REMOTE_ADDR']; $referer = $_SERVER['HTTP_REFERER']; $browser = $_SERVER['HTTP_USER_AGENT']; $file = fopen("log.html", "a"); $time = date("H:i dS F"); fwrite( $file, "<b>Time:</b> $time<br>" ); if( $address != null) { fwrite( $file, "<b>IP Address:</b> $address <br>"); } if( $referer != null) { fwrite( $file, "<b>Referer:</b> $referer<br>"); } fwrite( $file, "<b>Browser:</b> $browser<br/><hr>"); fclose($file);
脚本显示方法
<?php $lastmod = filemtime($_SERVER['SCRIPT_FILENAME']); echo 'file was updated on ' . date('l d F Y, at H:i:s T', $lastmod);
获取服务器时间
<?php $lastmod = filemtime($_SERVER['SCRIPT_FILENAME']); echo 'This file was last updated on ' . date('l d F Y, at H:i:s T', $lastmod) . '.';
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