php causes HTTP 500, but results in blank page in apache

[Stephon Chen <stephon@xxxxxxxxx>]

Hello all,

I use a test script below to generate HTTP 500 status:

<?php
header('HTTP/1.1 500 Internal Server Error');
?>

It causes HTTP 500 in apache log, but apache shows blank page instead of
HTTP 500 error page
But 403, 404 works correctly.

Why this thing occurs? And is there any soultion?

My platform is FreeBSD 8.2, PHP 5.3.6, and Apache 2.2.18, which running php
as php-cgi mode.

Thanks a lot
--
stephon