Hey guys,
I can't seem to figure this out... A user has developed an application on their local machine using PHP/MySQL and the codeigniter framework. The application loads fine on their computer (windows running WAMP) however when we checkout the SVN to a new Ubuntu Server (10.04 with apache 2, mysql and PHP 5.3) the index.php just hangs. It would be so much better if there was at least an error to work with but this hanging makes it damn near impossible to figure out what the problem is.

I've check file permission and everything is owned by www-data with chmod 755 applied to everything. Is there a tool available that would, for example let me view in real time what PHP is processing to see where it gets stuck?