An in-depth chat about the array_chunk() function in php

array_chunk() function in php

Complete PHP Array Reference Manual

Split the array into array chunks with two elements:

<?php
$cars=array("Volvo","BMW","Toyota","Honda","Mercedes","Opel");
print_r(array_chunk($cars,2));
?>

Definition and usage

array_chunk() Function splits an array into new array chunks.

Syntax

array_chunk(array,size,preserve_keys);

<?php 
/*
参数      描述
array      必需。规定要使用的数组。    
size       必需。一个整数，规定每个新数组块包含多少个元素。    
preserve_key    可选。可能的值：
true -        保留原始数组中的键名。
false -       默认。每个新数组块使用从零开始的索引。
*/
?>

Return value:

Returns a multi-dimensional numerical array, starting from 0, and each dimension contains size elements. PHP version: 4.2+

Split the array into array blocks with two elements, and retain the key names in the original array:

<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43","Harry"=>"50");
print_r(array_chunk($age,2,true));
?>

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