public static function ubn($check)
{
if (!preg_match('/^[0-9]{8}$/', $check)) {
return false;
}
$tbNum = [1, 2, 1, 2, 1, 2, 4, 1];
$intSum = 0;
for ($i = 0; $i < 8; $i++) {
$intMultiply = $check[$i] * $tbNum[$i];
$intAddition = floor($intMultiply / 10) + $intMultiply % 10;
$intSum += $intAddition;
}
return $intSum % 10 === 0 || $intSum % 10 === 9 && $check[6] === 7;
} /**
* test the ubn method of TwValidation
*
* @return void
*/
public function testUbn()
{
$this->assertTrue(TwValidation::ubn('30185757'));
$this->assertTrue(TwValidation::ubn('28816624'));
$this->assertTrue(TwValidation::ubn('29030783'));
$this->assertTrue(TwValidation::ubn('70385540'));
$this->assertTrue(TwValidation::ubn('70402724'));
$this->assertTrue(TwValidation::ubn('70417228'));
$this->assertTrue(TwValidation::ubn('70425493'));
$this->assertTrue(TwValidation::ubn('70428512'));
$this->assertTrue(TwValidation::ubn('80284937'));
$this->assertTrue(TwValidation::ubn('80288005'));
$this->assertTrue(TwValidation::ubn('80309347'));
$this->assertTrue(TwValidation::ubn('84824416'));
$this->assertTrue(TwValidation::ubn('84877118'));
$this->assertTrue(TwValidation::ubn('29048329'));
$this->assertTrue(TwValidation::ubn('29059535'));
$this->assertTrue(TwValidation::ubn('70433803'));
$this->assertTrue(TwValidation::ubn('70445786'));
$this->assertTrue(TwValidation::ubn('70460815'));
}