3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ [15, 16, 8, 1], [2, 3, 4, 7], [9, 11, 19, 6] ]; function bubbleSortRowCol($arr) { $cols = []; foreach($arr as $row) { bubbleSort($row); } } function bubbleSort($arr) { $sorted = false; while (false === $sorted) { $sorted = true; for ($i = 0; $i < count($arr)-1; ++$i) { $current = $arr[$i]; $next = $arr[$i+1]; if ($next < $current) { $arr[$i] = $next; $arr[$i+1] = $current; $sorted = false; } } } return $arr; } print_r(bubbleSortColRow($arr));
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Call to undefined function bubbleSortColRow() in /in/XigoJ:36 Stack trace: #0 {main} thrown in /in/XigoJ on line 36
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Fatal error: Call to undefined function bubbleSortColRow() in /in/XigoJ on line 36
Process exited with code 255.

preferences:
221.69 ms | 402 KiB | 296 Q