How can I call a static method from a class if all I have is a string of the class name?

Question

How would I get something like this to work?

$class_name = \'ClassPeer\';
$class_name::doSomething();

Answer 1

Use call_user_func. Also read up on PHP callbacks.

call_user_func(array($class_name, 'doSomething'), $arguments);