Fatal error: Uncaught Error: f(): Argument #1 ($x) could not be passed by reference in /in/A2iVi:4
Stack trace:
#0 {main}
thrown in /in/A2iVi on line 4
Process exited with code 255.
Fatal error: Uncaught Error: f(): Argument #1 ($x) cannot be passed by reference in /in/A2iVi:4
Stack trace:
#0 {main}
thrown in /in/A2iVi on line 4
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Only variables can be passed by reference in /in/A2iVi on line 4
Process exited with code 255.