initialize() public method

If any unknown parameters passed, they will be ignored.
public initialize ( array $parameters = null ) : CreditCard
$parameters array An associative array of parameters
return CreditCard provides a fluent interface.
 public function testInitializeWithParams()
 {
     $card = new CreditCard();
     $card->initialize(array('name' => 'Test Customer'));
     $this->assertSame('Test Customer', $card->getName());
 }