PHP: Hypertext Preprocessor is a server-side scripting language designed for Web development, but also used as a general-purpose programming language. It was originally created by Rasmus Lerdorf in 1994, the PHP reference implementation is now produced by The PHP Group.

class Person
{
   public $firstName;
   public $lastName;

   public function __construct($firstName, $lastName = '') { // optional second argument
     $this->firstName = $firstName;
     $this->lastName = $lastName;
   }