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

To unleash the power of IDE autocomplete and error detection, use this:

$class_name = 'ClassPeer';

$r = new \ReflectionClass($class_name );

// @param ClassPeer $instance

$instance =  $r->newInstanceWithoutConstructor();

//$class_name->doSomething();
$instance->doSomething();

Basically here we are calling the static method on an instance of the class.