Description:
------------
In a large script set (~10000 lines), I was using NWLN(); to output newlines in GUI functions, when testing PHP5 the server crashes after the function is called for the first time, the code in the function is not executed.

Bug occurs under IIS 6 with php5isapi.dll and apache 1.3 with php5apache.dll.

Reproduce code:
---------------
function NWLN() // CRASHES!
{
	echo "<br>";
}

function NWLN() // WORKS
{
printf("<br>");
}


Expected result:
----------------
expected script execution to continue

Actual result:
--------------
script execution stops silently under IIS 6, under apache 1.3 it causes a fatal exception.