PHP array_chunk() function

The array_chunk() function is built-in function in PHP. The array_chunk function splits an array into chunks of new arrays. This function divides an array into different block of new arrays.

Syntax

Parameter	Description	Is compulsory
array	Specifies the array to use	compulsory
size	Integer that specifies the size of each chunk	compulsory
preserve key	When set to TRUE keys will be preserved. Default is FALSE which will re-index the chunk numerically	optional

Important Note: The last chunk may contain less elements than the desired size of the chunk.

Example 1

<?php
$animals=array ("DOG", "CAT", "LION", "ELEPHANT", "MONKEY", "TIGER");
print_r( array_chunk ($animals,2 ));
?>

Output:

Array  (  [0] => Array ( [0] => DOG [1] => CAT) [1] => Array ( [0] => LION [1] => ELEPHANT ) [2] => Array ( [0] => MONKEY 
[1] => TIGER ) )

Example 2

<?php

 	$input_array = array ('a', 'b', 'c', 'd', 'e');
 	print_r(array_chunk($input_array, 2, true));
 
?>

Output:

Array ( [0]=> Array ( [0]=> a  [1]=> b ) [1]=> Array ( [2]=> c [3]=> d ) [2]=> Array ( [4]=> e ) )

Example 3

<?php
 $name = array('ajay', 'sonoo', 'rahul', 'sid', 'raj');
 print_r(array_chunk($name, 4));
 print_r(array_chunk($name, 2, true));
?>

Output:

Array ( [0] => Array ( [0] => ajay [1] => sonoo [2] => rahul [3] => sid ) [1] => Array ( [0] => raj ) ) Array ( [0] => Array
 ( [0] => ajay [1] => sonoo  ) [1] => Array ( [2]=>rahul [3] => sid  ) [2] => Array ( [4] => raj ) )

Example 4

<?php

$company=array("a"=>"Adobe","b"=>"Bosch","c"=>"Cummins","d"=>"Dlf");
print_r(array_chunk($company,2,true));

?>  

Output:

Array ( [0] => Array ( [a] => Adobe [b] => Bosch ) [1] => Array ( [c] => Cummins [d] => Dlf  ) )

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