PHP array_chunk() Function

Definition and Usage

The array_chunk() function splits an array into chunks of new arrays.

array_chunk(array,size,preserve_key)

Parameter	Description
array	Required. Specifies the array to use
size	Required. Specifies how many elements each new array will contain
preserve_key	Optional. Possible values: true - Preserves the keys from the original array. false - Default. Does not preserve the keys from the original array.

<?php
$a=array("a"=>"Cat","b"=>"Dog","c"=>"Horse","d"=>"Cow");
print_r(array_chunk($a,2));
?>

The output of the code above will be:

Array (
[0] => Array ( [0] => Cat [1] => Dog )
[1] => Array ( [0] => Horse [1] => Cow )
)

<?php
$a=array("a"=>"Cat","b"=>"Dog","c"=>"Horse","d"=>"Cow");
print_r(array_chunk($a,2,true));
?>

The output of the code above will be:

Array (
[0] => Array ( [a] => Cat [b] => Dog )
[1] => Array ( [c] => Horse [d] => Cow )
)

Complete PHP Array Reference