I had upgraded to the latest PHP 5.3.3 package and had eAccelerator installed.  This causes a crash with the following code:

<?php

$GLOBALS['foo'] = array('foo0','foo1');                                                         
$GLOBALS['bar'] = 0;     

echo $GLOBALS['foo'][$GLOBALS['bar']];       

?>

I removed the eAccelerator package and the code then worked as expected.

PhpMyAdmin uses code like this and will crash on systems with the 5.3.3 and eAccelerator packages installed.