twilio Rest api call making not working-Collection of common programming errors

I am really frustrated as I can’t figure out why my Twilio callStatus for the REST api is not working :S…Any ideas?

It makes a call at stackoverflow.php but when it hits the yournextnumber.php it doesn’t execute the if statements because most likely there is no value in the callStatus any idea why the status is not being sent?

stackoverflow.php

yourNextNumber.php