Personal Computing and Development by Dag J. Nedrelid

Classes in PHP5

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Basic:

<?php

Class MyCar {
  public $name;

  function __construct($name) {
    $this->name = $name;
  }

  function __destruct() {
    echo '*crash* this car has been destroyed';
  }

  function drive() {
    echo 'Vrooooom... ' . $this->name;
  }
}

// Instance 1
$porsche = new MyCar('Porsche');
$porsche->drive();

echo '';

unset($porsche);

?>

Inheritance:

<?php

Class MyCar {
  public $name;

  function __construct($name) {
    $this->name = $name;
  }

  function drive() {
    echo 'Vroooom... ' . $this->name;
  }
}

Class PorscheCar Extends MyCar {

  function drive() {
    echo 'VROOOOOOOOM... ' . $this->name;
    echo '';

    // Call original method from parent class
    parent::drive();
  }

}

$boxster = new PorscheCar('Boxster 987');
$boxster->drive();

?>

Learn more here.