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<?php $array = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i']; $chunk = array_chunk($array, 2); var_dump($chunk);
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.1.7
array(5) { [0]=> array(2) { [0]=> string(1) "a" [1]=> string(1) "b" } [1]=> array(2) { [0]=> string(1) "c" [1]=> string(1) "d" } [2]=> array(2) { [0]=> string(1) "e" [1]=> string(1) "f" } [3]=> array(2) { [0]=> string(1) "g" [1]=> string(1) "h" } [4]=> array(1) { [0]=> string(1) "i" } }