How to split an array into parts in php

In PHP, you can use the array_chunk() function to split an array into several parts. This function can split an array into multiple sub-arrays, and return these sub-arrays into a multi-dimensional array; syntax "array_chunk ($arr,$size,$preserve_keys)".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In php, you can use the array_chunk() function to split the array into parts.

array_chunk() function can split an array into multiple ones. Its syntax is as follows:

array array_chunk ( array $arr , int $size [, bool $preserve_keys = false ] )

Parameter description:

• arr represents the number to be split Array;

• size represents the number of elements in the divided sub-array;

• preserve_keys represents whether to retain the original key names in the arr array. The default is false, that is, it is not retained. Each sub-array after splitting will use a new numeric index starting from 0; if set to true, the original key names in arr will be retained.

array_chunk() will split the arr array into multiple sub-arrays, and the number of elements in each sub-array is determined by size. The last subarray may have less than size elements.

Return value: Returns a multi-dimensional array composed of divided sub-arrays.

Example:

Output result:

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