New Object-Oriented Features:

The new OO features are too numerous to give a detailed description in this section. Chapter 3, “PHP 5 OO Language,” details each feature.

The following list provides the main new features:

v  Public / private / protected access modifiers for methods and properties.

Allows the use of common OO access modifiers to control access to methods and properties:

class MyClass

{

private $id = 18;

public function getId()

{

return $this->id;

}

}

v  Unified constructor name __construct(). Instead of the constructor being the name of the class, it is now declared as __construct() , which makes it easier to shift classes inside class hierarchies:

class MyClass

{

function __construct()

{

print "Inside constructor";

}

}

v  Object destructor support by defining a __destructor() method. Allows defining a destructor function that runs when an object is destroyed:

class MyClass

 {

function __destruct()

{

print ”Destroying object”;

}

}