Online PHP editor | output for s4048

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, 5.3.0 - 5.3.29, 5.4.0 - 5.4.32, 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: <? $arData = array( 0 => '5', 1 => '26', 2 => '6', 3 => '27' ); $arResult = array(); foreach ($arData as $key => $arValue) { $arResult[intval($key/2)][key($arValue)] = $arValue[key($arValue)]; } print_r($arResult); ?>
Output for 8.0.13: Fatal error: Uncaught TypeError: key(): Argument #1 ($array) must be of type array, string given in /in/s4048:10 Stack trace: #0 /in/s4048(10): key('5') #1 {main} thrown in /in/s4048 on line 10
Process exited with code 255.
Output for 5.4.34 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.13, 7.3.0 - 7.3.1, 7.4.33: Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Notice: String offset cast occurred in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Notice: String offset cast occurred in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Notice: String offset cast occurred in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Notice: String offset cast occurred in /in/s4048 on line 10 Array ( [0] => Array ( [] => 2 ) [1] => Array ( [] => 2 ) )
Output for 7.3.32 - 7.3.33: Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Warning: key() expects parameter 1 to be array, string given in /in/s4048 on line 10 Array ( [0] => Array ( [] => 2 ) [1] => Array ( [] => 2 ) )