Clean up an URL from scripts

<?php
function clean_url(&$hit_link) {
// Find the first occurency of "http://". If it's not at position zero remove everything before it.
   
$find = 'http://';
   
$url  = $hit_link;
   
$pos  = strpos($url, $find);

    if(
$pos !== FALSE) {
     
// We found a http://, on what position?
     
if($pos > 0) {
       
$pos += 7;
       
$url = substr($url, $pos); //Removes the first "http://"
       
$hit_link = $url;
      }
    }
  }
?>
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