Toolbox::slugify PHP Méthode

    public static function slugify($string)
    {
        $string = str_replace(' ', '-', self::strtolower($string, 'UTF-8'));
        $string = self::removeHtmlSpecialChars($string);
        $string = preg_replace('~[^0-9a-z]+~i', '-', $string);
        return trim($string, '-');
    }

 public function testSlugify()
 {
     $original = 'My - string èé  Ê À ß';
     $expected = 'my-string-ee-e-a-sz';
     $result = Toolbox::slugify($original);
     $this->assertEquals($expected, $result);
 }