Warning: Undefined variable $string1 in /in/d4A6M on line 2
Deprecated: strtoupper(): Passing null to parameter #1 ($string) of type string is deprecated in /in/d4A6M on line 2
Output for 8.0.0 - 8.0.30
Warning: Undefined variable $string1 in /in/d4A6M on line 2