PHP Classes calling functions to it
I saw some codes that when they call php functions from another class they no longer use<br> `$this->functionName()`, <br>
they just refer immedietly to the function name, like <br>`functionName()`

Example.<br>
In my index.php

      $help = new Helper();
     $help->TestClass();

I wanted to call TestClass Function by not doing the $help<br>
Kindly tell me how to do this and also why is this possible.

Thanks.
PHP Classes calling functions to it
===

I saw some codes that when they call php functions from another class they no longer use<br> `$this->functionName()`, <br>
they just refer immedietly to the function name, like <br>`functionName()`

Example.<br>
In my index.php

      $help = new Helper();
     $help->TestClass();

I wanted to call TestClass Function by not doing the $help<br>
Kindly tell me how to do this and also why is this possible.

Thanks.