PHP Code: Heavy Duty URL validator - A heavy-duty URL validator that should work on nearly any valid URL.

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Snippet Name: Heavy Duty URL validator

Description: A heavy-duty URL validator that should work on nearly any valid URL.

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Language: PHP
Highlight Mode: PHP
Last Modified: February 28th, 2009

<?PHP
 
$valid = "^(https?|ftp)\:\/\/([a-z0-9+!*(),;?&=\$_.-]+(\:[a-z0-9+!*(),;?&=\$_.-]+)?@)?[a-z0-9+\$_-]+(\.[a-z0-9+\$_-]+)*(\:[0-9]{2,5})?(\/([a-z0-9+\$_-]\.?)+)*\/?(\?[a-z+&\$_.-][a-z0-9;:@/&%=+\$_.-]*)?(#[a-z_.-][a-z0-9+\$_.-]*)?\$";
 
?>