public static function postal($check) { $pattern = '/^[0-9]{5}$/i'; return (bool) preg_match($pattern, $check); }
/** * test the postal method of ItValidation * * @return void */ public function testPostal() { $this->assertTrue(ItValidation::postal('10096')); $this->assertFalse(ItValidation::postal('1046')); }