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    PHP array_chunk() Function

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    Definition and Usage

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

    Syntax

    array_chunk(array, size, preserve_key)

    Parameter Values

    Parameter Description
    array Required. Specifies the array to use
    size Required. An integer that specifies the size of each chunk
    preserve_key Optional. Possible values:
    • true - Preserves the keys
    • false - Default. Reindexes the chunk numerically

    Technical Details

    Return Value: Returns a multidimensional indexed array, starting with zero, with each dimension containing size elements
    PHP Version: 4.2+

    Examples

    Example 1: PHP Array - array_chunk() Function part 1

    Split an array into chunks of two:

    <?php
$cars=array("Volvo","BMW","Toyota","Honda","Mercedes","Opel");
print_r(array_chunk($cars,2));
?>
    Example 2: PHP Array - array_chunk() Function part 2

    Split an array into chunks of two and preserve the original keys:

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

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    PHP Referrence: The PHP reference contains different categories of all PHP functions, keywords and constants, along with examples.

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  • array() Function
  • array_change_key_case() Function
  • array_chunk() Function
  • array_combine() Function
  • array_count_values() Function
  • arsort() Function
  • asort() Function
  • count() Function
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    PHP Quiz

    Example files created in this segment:
    Indexed Arrays Associative Arrays Loop Through an Indexed Array Loop Through an Associative Array Two-dimensional Array Change all keys in an array to lowercase Special rules for changing key case PHP Array - array_chunk() Function part 1 PHP Array - array_chunk() Function part 2 PHP array_combine() Function PHP array_count_values() Function PHP arsort() Function PHP asort() Function PHP count() Function part 1 count() Function part 2