How can I reliably identify a specific error in PHP?

Question

Because of PHP\'s unlink() not supporting exceptions natively, I\'m making a wrapper function for it. It should throw a FileNotFoundException if, w

Answer 1

I've seen php error messages change quite a bit over the years. Maybe, try to detect a change in the last error over a very granular piece of code, and then result to string parsing in a very loose manor.

$lastErr = error_get_last();
unlink($file);
if ($lastErr !== error_get_last()) {
    // do something
    //maybe string parsing and/or testing with file_exists, is_writable etc...
}