3v4l.org

run code in 300+ PHP versions simultaneously
<?php function array_group(array $arr1, callable $compare): array { $groups = []; $group = []; $prev = NULL; foreach ($arr1 as $value) { if ($group && !$compare($prev, $value)) { $groups[] = $group; $group = []; } $group[] = $value; $prev = $value; } if ($group) { $groups[] = $group; } return $groups; } $arr1 = array(1,2,2,3,1,2,0,4,5,2); $compare = fn ($a, $b) => $a <= $b; print_r(array_group($arr1, $compare));
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Array ( [0] => Array ( [0] => 1 [1] => 2 [2] => 2 [3] => 3 ) [1] => Array ( [0] => 1 [1] => 2 ) [2] => Array ( [0] => 0 [1] => 4 [2] => 5 ) [3] => Array ( [0] => 2 ) )
preferences:
72.87 ms | 407 KiB | 5 Q