Description:
------------
Adding a call to explode() that is missing the 
requisite comma between the first and second function 
arguments causes zero output to be sent to the browser, 
even if the explode() call is never executed.

Reproduce code:
---------------
if (false)
{
   $testStr = "a,b,c";
   $testArray = explode("," $testStr);
}

Expected result:
----------------
I expect a syntax error to be generated.

Actual result:
--------------
Zero output, seemingly regardless of other code in 
file.