Validation::alphanumeric PHP Method

    public static function alphanumeric($value)
    {
        return (bool) preg_match('/^[\\p{Ll}\\p{Lm}\\p{Lo}\\p{Lt}\\p{Lu}\\p{Nd}]+$/mu', $value);
    }

 /**
  * @testdox alphanumeric should return false to symbols
  */
 public function testInvalidAlphanumeric()
 {
     $value = 'Spaghetti* PHP 1.2.3.4';
     $this->assertFalse(Validation::alphanumeric($value));
 }