Fatal error: Uncaught ArgumentCountError: Too few arguments to function a(), 0 passed in /in/EsaYj on line 9 and exactly 1 expected in /in/EsaYj:5
Stack trace:
#0 /in/EsaYj(9): a()
#1 {main}
thrown in /in/EsaYj on line 5
Process exited with code 255.
Warning: Missing argument 1 for a(), called in /in/EsaYj on line 9 and defined in /in/EsaYj on line 5
Notice: Undefined variable: x in /in/EsaYj on line 6