Array_chunk: splits an array into two-dimensional arrays containing multiple one-dimensional arrays-PHP source code

Array_chunk: splits an array into two-dimensional array array_chunk that contains multiple one-dimensional arrays (array $ input, int $ size [, bool $ preserve_keys = false])
Input: array to be operated
Size: Number of units in each array
Preserve_keys: if it is set to TRUE, PHP can retain the original key name in the input array. FALSE. each result array is indexed with a new number starting from scratch. The default value is FALSE.

1. php code

$ Arr1 = ['A', 'B', 'C', 'D', 'e', 'F', 'G']; $ arr = array_chunk ($ arr1, 3, true); echo'
'; Print_r ($ arr); result: Array ([0] => Array ([0] => a [1] => B [2] => c) [1] => Array ([3] => d [4] => e [5] => f) [2] => Array ([6] => g ))