Description:
------------
in a script without namespaces you could took the function name in a string und call it via $string()

this does not work, if this function is located in a namespace.


The analog case with classes is described as ok in the docs(dont have tested it), so it should also work with functions.
So i Request to add this feature.

Test script:
---------------
<?php

namespace bar{

	function foo(){
		echo "test", "\n";
	}

	function foo2(){
		echo "test2", "\n";
	}
	function foo3(){
		echo "test3", "\n";
	}
}

namespace{
	echo "start \n";
	\bar\foo();
	use \bar as haha;
	haha\foo2();
	$test = 'haha\foo3';
	$test();
}


?>

Expected result:
----------------
test
test2
test3

Actual result:
--------------
test
test2

Fatal error: Call to undefined function haha\foo3() in /home/flyingmana/Desktop/sandkasten/namespace.php on line 19