Parsing $_POST variables and arrays with filter_input_array, filter input and FILTER_CALLBACK

Another day, another PHP Codesniffer induced solution to some code that worked fine before, but I just couldn't leave it alone once Codesniffer scolded me. This time it was: Detected access of super global var $_POST, probably needs manual inspection No problem. I've used filter_input before, lets do this. First problem, I'm dealing with an …