Fatal error: Uncaught Error: out(): Argument #1 ($x) could not be passed by reference in /in/JfD5Q:4
Stack trace:
#0 {main}
thrown in /in/JfD5Q on line 4
Process exited with code 255.
Fatal error: Uncaught Error: out(): Argument #1 ($x) cannot be passed by reference in /in/JfD5Q:4
Stack trace:
#0 {main}
thrown in /in/JfD5Q on line 4
Process exited with code 255.