title: Return parent::function in a function
body: <pre><code>class Test extends Parent {
     $a = 1;
  
     public function changeVarA() {
         $a = 2;
         return parent::changeVarA();
     }
  
  }
  </code></pre>
  
  <p>Can Anyone please explain what does <code>return parent::function();</code> it do ? </p>
  
  <p>Thank you...! ;D</p>