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Does PHP versions 5.3 or after support inner classes? example:
class MyClass{
class PrivateClass1{
}
class PrivateClass2{
}
class PrivateClass3{
}
private $obj1;
private $obj2;
private $obj3;
__construct(){
$obj1 = new PrivateClass1();
$obj2 = new PrivateClass2();
$obj3 = new PrivateClass3();
}
}
558
In object-oriented programming (OOP), an inner class or nested class is a class declared entirely within the body of another class or interface. It is distinguished from a subclass. – Wikipedia. So basically inner class is a class that is declared inside the scope of another class.
In PHP, an anonymous class is a useful way to implement a class without defining it. These are available from PHP 5.3 onwards.
Can classes be nested in PHP? Compelling reasons for using nested classes include the following: It is a way of logically grouping classes that are only used in one place: If a class is useful to only one other class, then it is logical to embed it in that class and keep the two together.
Use a non-static nested class (or inner class) if you require access to an enclosing instance's non-public fields and methods. Use a static nested class if you don't require this access.
PHP currently (5.4.3) does not support Inner/Friend Classes
And there is also no RFC in the wiki asking for addition of a feature like this.
138
It's possible to create a class within another class definiton, but it's not possible to define a class within a class definition. So this means your construction in invalid.
But, you can always extend a class with another class, check this URL for more:
http://php.net/manual/en/keyword.extends.php
Check Can I instantiate a PHP class inside another class? for even more.
37
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