Fastest way to determine where PHP script exits

Question

Say you have a large PHP project and suddenly, when attempting to run it, you just end up with a blank page. The script terminates and you want to find exactly where that is

Answer 1

Also check the error___logs for "memory_limit" errors in the Apache error_log.

Memory Limit >= 10M Warning: (Set this to 10M or larger in your php.ini file)

In my experience, scripts suddenly end without warning or notice when this happens.