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15 years ago
As I wasted lots of time finding a REAL regex for URLs and resulted in building it on my own, I now have found one, that seems to work for all kinds of urls:



<?php

    $regex = "((https?|ftp)\:\/\/)?"; // SCHEME

    $regex .= "([a-z0-9+!*(),;?&=\$_.-]+(\:[a-z0-9+!*(),;?&=\$_.-]+)?@)?"; // User and Pass

    $regex .= "([a-z0-9-.]*)\.([a-z]{2,3})"; // Host or IP

    $regex .= "(\:[0-9]{2,5})?"; // Port

    $regex .= "(\/([a-z0-9+\$_-]\.?)+)*\/?"; // Path

    $regex .= "(\?[a-z+&\$_.-][a-z0-9;:@&%=+\/\$_.-]*)?"; // GET Query

    $regex .= "(#[a-z_.-][a-z0-9+\$_.-]*)?"; // Anchor

?>



Then, the correct way to check against the regex ist as follows:



<?php

       if(preg_match("/^$regex$/", $url))

       {

               return true;

       }

?>
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