Description:
------------
Following script will print '4-FAIL' using php 5.2.9 build and today's snapshot php5.2-200903092130.

Following returns true where $k = int(0), which is wrong:
if ($k == 'abc')
	echo "3-FAIL\n";

Also confirmed this is failing on 5.1.6.


Reproduce code:
---------------
<?php

$a = array(4);
if ($a[0] != '4')
	echo "1-FAIL";

if ($a[0] != 4)
	echo "2-FAIL";

if ($a[0] == 'abc')
	echo "3-FAIL\n";

foreach ($a as $k => $v)
{
	// $k is ONLY and ALWAYS ZERO (0)
	var_dump($k);
	var_dump($v);

	if ($k == 'abc')
		echo "4-FAIL\n";

	if ($k === 'abc')
		echo "5-FAIL\n";

	if ($v == 'abc')
		echo "6-FAIL\n";
}


Expected result:
----------------
Code should not print anything.
Only key is int(0) and only value is int(4)