PHP $_SERVER详细用法分析

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') { ?>

What is your first name?

    echo 'Hello, ' . $_POST['first_name'] . '!';
}
?>

获取用户的IP地址

$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, "Time: $time
" );

if( $address != null)
{
  fwrite( $file, "IP Address: $address
");
} 

if( $referer != null)
{
  fwrite( $file, "Referer: $referer
"); 
}

fwrite( $file, "Browser: $browser

---

"); 

fclose($file);

?>

脚本显示方法

$lastmod = filemtime($_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

 
  $lastmod = filemtime($_SERVER['SCRIPT_FILENAME']);

  echo 'This file was last updated on '
        . date('l d F Y, at H:i:s T', $lastmod)
        . '.';
?>