PHP equivalent of Python's __name__ == “__main__”?

Question

As per the title, is there PHP equivalent of __name__ == \"__main__\"?

Is there something that would work for both scripts executed through the command line

Answer 1

if (!count(debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS)))
{
    // some usefull stuff
}

look at https://www.php.net/manual/en/function.debug-backtrace.php for more details on debug_backtrace function