* @param string * @return string */ function smarty_modifier_url($string) { $string = trim($string); if ( ctype_digit($string) ) { return $string; } else { // replace accented chars $accents = '/&([A-Za-z]{1,2})(grave|acute|circ|cedil|uml|lig);/'; $string_encoded = htmlentities($string,ENT_NOQUOTES,'UTF-8'); $string = preg_replace($accents,'$1',$string_encoded); // clean out the rest $replace = array('([\40\'/])','([^a-zA-Z0-9-])','(-{2,})'); $with = array('-','','-'); $string = preg_replace($replace,$with,$string); } return strtolower($string); } /* vim: set expandtab: */ ?>