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<?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 git.master, git.master_jit, rfc.property-hooks
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 ) )

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