Fatal error: Uncaught Error: Undefined constant "hello" in /in/Siak9:7
Stack trace:
#0 {main}
thrown in /in/Siak9 on line 7
Process exited with code 255.
Warning: Use of undefined constant hello - assumed 'hello' (this will throw an Error in a future version of PHP) in /in/Siak9 on line 7
string(5) "world"