this in php class example

Example 1: class php

<?php
class Foo {
    public $aMemberVar = 'aMemberVar Member Variable';
    public $aFuncName = 'aMemberFunc';
   
   
    function aMemberFunc() {
        print 'Inside `aMemberFunc()`';
    }
}

$foo = new Foo;

function getVarName()
{
     return 'aFuncName'; 
}

print $foo->{$foo->{getVarName()}}();

Example 2: oops concepts in php

The  PHP Object-Oriented Programming concepts are:
Class 
Objects
Inheritance
Interface
Abstraction
Magic Methods