php用header函数实现301跳转代码实例

转载链接：https://www.jb51.net/article/43720.htm

<?php
	$the_host = $_SERVER['HTTP_HOST'];
	 $request_uri = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '';
	 if($the_host !== 'www.jb51.net')
	 {
			//echo $_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];
			header('HTTP/1.1 301 Moved Permanently');
			header('Location: //www.jb51.net' . $_SERVER['PHP_SELF']  . $request_uri);
	 }
?>