This runs as a cron job and notifies the administrator of all the php fatal errors that happened in the last specified time. This is a low-overhead solution to fatal error
reporting.... some solutions suggested output buffering each page, running a regex, but that has huge overhead. Others say no production code should ever have fatal errors.
However, in my business we maintain many different sites each low budget and testing may not always be efficent. Sometimes a change on one file affects our code in more than one
place and we forget to look somewhere and fatal errors happen. This has saved our butt a few times.