Question

Does anyone know how to convert this code to be PHP 5.2 compatible?

$myClass = 'ValidClassName';
$instance = $myClass::factory(array('arg' => 'value));

I know in PHP 5.3

As of PHP 5.3.0, it’s possible to reference the class using a variable. The variable’s value can not be a keyword (e.g. self, parent and static).

And without realizing it, I was using it. Then on a Php 5.2 enviroment, I get the error

Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM

So I am trying to figure out how to convert that code into something that will be at least 5.2 backwards compatible.

Answer 1

According to the documentation of call_user_func():

As of 5.2.3:

$instance = call_user_func($myClass.'::factory', array('arg' => 'value'));

And I think this works on 5.2.0:

$instance = call_user_func(array($myClass, 'factory'), array('arg' => 'value'));