array_chunk

Definition and usage

array_chunk() function divides the array into new array chunks.

The number of units in each array is determined by the size parameter. The number of units in the last array may be fewer.

The optional parameter preserve_key is a Boolean value that specifies whether the elements of the new array have the same key as the original array (for associative arrays), or a new numeric key starting from 0 (for indexing arrays). The default is to assign a new key.

Example

Example 1

Split the array into an array with two elements:

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

Try it yourself

Example 2

Split the array into an array with two elements and preserve the key names in the original array:

 <?php
$age = array ( "Bill" => "60" , "Steve" => "56" , "Mark" => "31" , "David" => "35" ) ;
print_r ( array_chunk ( $age , 2 , true ) ) ;
?>

Try it yourself

grammar

 array_chunk ( array , size , preserve_key ) ;