public static function postal($check)
{
$pattern = '/[1-9][0-9]{4}/';
return (bool) preg_match($pattern, $check);
}
/** * Test the postal method of IdValidation * * @return void */ public function testPostal() { $this->assertTrue(IdValidation::postal('15000')); $this->assertFalse(IdValidation::postal('00091')); }