Magento How to debug blank white screen

Question

I have an error in my Magento backend that results in a blank screen (WSOD). I have set errors to on in admin but there is nothing being created in var/logs/. (I have checke

Answer 1

It can also be when you don't have a proper php extension loaded. I would double check that you have all of the required php extensions loaded on your system if it isn't the memory limit issue.