Online PHP editor | output for HVch7

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7: Fatal error: Uncaught ArgumentCountError: strtoupper() expects exactly 1 argument, 2 given in /in/HVch7:3 Stack trace: #0 [internal function]: strtoupper(3, 0) #1 /in/HVch7(3): array_walk(Array, 'strtoupper') #2 {main} thrown in /in/HVch7 on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Warning: strtoupper() expects exactly 1 parameter, 2 given in /in/HVch7 on line 3 Warning: strtoupper() expects exactly 1 parameter, 2 given in /in/HVch7 on line 3 Warning: strtoupper() expects exactly 1 parameter, 2 given in /in/HVch7 on line 3 Warning: strtoupper() expects exactly 1 parameter, 2 given in /in/HVch7 on line 3 Array ( [0] => 3 [1] => 5 [2] => joseph [3] => blah )
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Warning: Wrong parameter count for strtoupper() in /in/HVch7 on line 3 Warning: Wrong parameter count for strtoupper() in /in/HVch7 on line 3 Warning: Wrong parameter count for strtoupper() in /in/HVch7 on line 3 Warning: Wrong parameter count for strtoupper() in /in/HVch7 on line 3 Array ( [0] => 3 [1] => 5 [2] => joseph [3] => blah )