Remove all illegal URL characters from a string in PHP

Description

The following code shows how to remove all illegal URL characters from a string.

Example


/* w ww  .j  a  v a2  s  .  c o m*/

<?php
    $var="http://www.java??2s.co?m";

    var_dump(filter_var($var, FILTER_SANITIZE_URL));
//  This filter allows all letters, digits and $-_.+!*'(),{}|\\^~[]`"><#%;/?:@&=
?>

The code above generates the following result.





















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