Fatal error: Uncaught TypeError: chr(): Argument #1 ($codepoint) must be of type int, string given in /in/fWWq9:15
Stack trace:
#0 /in/fWWq9(15): chr('')
#1 /in/fWWq9(22): chrArray('abc...')
#2 {main}
thrown in /in/fWWq9 on line 15
Process exited with code 255.