<?php

	$first = true;
	$test = array();

	function test()
	{
		global $first, $test;

		if(!$first)
		{
			$test = array(1, 2, 3);
		}
		else
		{
			$first = false;
		}

		return $test;
	}

	$count = count(test());
	echo $count; // 0

	$count = count(test());
	echo $count; // 3