Slug class

index.php

<?php

class StrUtils {
    static function slug($str){
        $str = strtolower($str);
        $str = self::remove_accent($str);
        return preg_replace(array('/[^a-zA-Z0-9 \'-]/', '/[ -\']+/', '/^-|-$/'),
                        array('', '-', ''), $str);
    }

    static function remove_accent($string)
    {
      $a = array('à', 'á', 'â', 'ã', 'ä', 'å', 'ò', 'ó', 'ô', 'õ', 'ö', 'ø', 'è', 'é',
                 'ê', 'ë', 'ç', 'ì', 'í', 'î', 'ï', 'ù', 'ú', 'û', 'ü', 'ÿ', 'ñ');
      $b = array('a' ,'a' ,'a' ,'a' ,'a' ,'a' ,'o' ,'o' ,'o' ,'o' ,'o' ,'o' ,'e' ,'e' ,
                 'e' ,'e' ,'c' ,'i' ,'i' ,'i' ,'i' ,'u' ,'u' ,'u' ,'u' ,'y' ,'n');
      return str_replace($a, $b, $string);
    }
    
    // alternative function
    static function filter( $str ) {
        $str = strtolower( iconv('UTF-8','ASCII//TRANSLIT//IGNORE', $str) );
        $search = array ('@[ ]@i','@[^a-zA-Z0-9_]@');
        $replace = array ('_','');
        return preg_replace($search, $replace, $str);
    }
}

?>