Fatal error: Uncaught Error: Undefined constant "UNKNOWN_CONSTANT" in /in/3eThj:3
Stack trace:
#0 {main}
thrown in /in/3eThj on line 3
Process exited with code 255.
Warning: Use of undefined constant UNKNOWN_CONSTANT - assumed 'UNKNOWN_CONSTANT' (this will throw an Error in a future version of PHP) in /in/3eThj on line 3
string(16) "UNKNOWN_CONSTANT"