Fatal error: Uncaught ValueError: mb_strlen(): Argument #2 ($encoding) must be a valid encoding, "invalid-encoding" given in /in/NrutS:2
Stack trace:
#0 /in/NrutS(2): mb_strlen('xyz', 'invalid-encodin...')
#1 {main}
thrown in /in/NrutS on line 2
Process exited with code 255.