Description:
------------
when your fingers do what they wants and you accidentaly type !===

they 're is no error reported... just a blank screen



Test script:
---------------
<?php
// force display error...
error_reporting(E_ALL);
ini_set('display_errors', 'on'); 

// init a var
$test = 'test';

// make a test
if($test !=== NULL)
{
	echo 'ok';
}

die('STOP');
?>

Expected result:
----------------
okSTOP

Actual result:
--------------
nothing even, an error reports