PHP Function to generate an Alias for URL

generateAlias.php

<?php

public function generateAlias($strString, $uniquer)
  {
      $strString = preg_replace('/(&#*\w+)[\x00-\x20]+;/i', '$1;', $strString);
      $strString = preg_replace('/(&#x*)([0-9a-f]+);/i', '$1$2;', $strString);
      $strString =  html_entity_decode($strString, ENT_COMPAT, null);
      $strString = str_replace(array('[&]', '[&amp;]', '[lt]', '[gt]', '[nbsp]', '[-]'), array('&amp;', '&amp;', '&lt;', '&gt;', '&nbsp;', '&shy;'), $strString);
      $arrSearch = array('/[^a-zA-Z0-9 \.\&\/_-]+/', '/[ \.\&\/-]+/');
      $arrReplace = array('', '-');
      $strString = preg_replace($arrSearch, $arrReplace, $strString);
      if (is_numeric(substr($strString, 0, 1)))
      {
          $strString = 'id-' . $strString;
      }
      $strString = trim($strString, '-');
      return $strString . "-" . ($uniquer ? $uniquer : rand(100000,999999) );
  }

?>