Fatal error: Uncaught Error: Undefined constant "numCalls" in /in/jorHl:6
Stack trace:
#0 /in/jorHl(8): foo()
#1 {main}
thrown in /in/jorHl on line 6
Process exited with code 255.
Warning: Use of undefined constant numCalls - assumed 'numCalls' (this will throw an Error in a future version of PHP) in /in/jorHl on line 6
this function has been executed numCalls times