Until now, I had been checking for the presence of argc and argv in my script to determine whether requests were coming from the CLI, which worked on several development machines. When placed on a particular shared host, though, the program went into fits. Looking at my routing code, I discovered that the host was setting both argc and argv for my requests, which mystifies me a bit.
I've since switched to php_sapi_name to solve the CLI routing issue, but I wanted to know why and how the shared host was setting those variables in the $_SERVER array. Any help is appreciated. Thanks!