No issue related to ownership/permissions in php and .htaccess file?.
No - sadly no log is written
[root@online php52]# ls -l
total 4.0K
-rw-r--r-- 1 admin admin 16 Jan 22 2014 index.php
[root@online php52]# cat .htaccess
<FilesMatch \.php$>
SetHandler x-httpd-php52
</FileMatch>