public static function postal($check) { $pattern = '/^[0-9]{5}$/'; return (bool) preg_match($pattern, $check); }
/** * test the postal_number method of RsValidation * * @return void */ public function testPostal() { $this->assertTrue(RsValidation::postal('11090')); $this->assertFalse(RsValidation::postal('111000')); $this->assertFalse(RsValidation::postal('A1100')); }