php url regular matching

URL regular matching code in PHP:

$regex = '/^(http|https|ftp):\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\’:+!]*([^<>\”])*$/';
$url = "http://www.baidu.com";
if (preg_match($regex, $url)) { 

	echo "Ture"; 
} else {

	echo "False";
} 

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The above introduces PHP url regular matching, including aspects of content. I hope it will be helpful to friends who are interested in PHP tutorials.