I am building a simple PHP daemon script, using a php Daemon class provided at:
http://www.phpclasses.org/browse/file/8958.html
I'm stuck with this class for better or worse, and I don't have much time to get this done; so in order to issue custom commands to the daemon I'm just using a command file located in the /tmp directory. However I need to delete this file after the daemon has processed any commands contained therein.
However, when I try to "unlink" the file in PHP, the unlink operation simply fails, and the file remains. I know for a fact that it is not a permissions issue. In fact I am quite certain this has something to do with the fact that each "iteration" of the daemon is spawned as a child process, and that sub-process must somehow not have permission to delete files.
My question: Why can't PHP delete this file, and what can I do about it?