Description:
------------
crash in page 2nd time loading
let the code say everything

Reproduce code:
---------------
$match = array( 0 => array("1", "2", "3", "4", "5"));
$match = &$match[0];
for ($i = 0, $c = count($match); $i < $c; $i ++) {
  // empty loop
}

however, the following code will not crash:
$match = array( 0 => array("1", "2", "3", "4", "5"));
$match = &$match[0];
echo $c = count($match);
for ($i = 0, $c = count($match); $i < $c; $i ++) {
  // empty loop
}

Expected result:
----------------
should not crash

Actual result:
--------------
but it did crash :(