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PHP

Return an array with elements in reverse order


array_reverse

(PHP 4, PHP 5)

array_reverseReturn an array with elements in reverse order

Description

array array_reverse ( array $array [, bool $preserve_keys = false ] )

Takes an input array and returns a new array with the order of the elements reversed.

Parameters

array

The input array.

preserve_keys

If set to TRUE numeric keys are preserved. Non-numeric keys are not affected by this setting and will always be preserved.

Return Values

Returns the reversed array.

Changelog

Version Description
4.0.3 The preserve_keys parameter was added.

Examples

Example #1 array_reverse() example

<?php
$input  
= array("php"4.0, array("green""red"));
$result array_reverse($input);
$result_keyed array_reverse($inputtrue);
?>

This makes both $result and $result_keyed have the same elements, but note the difference between the keys. The printout of $result and $result_keyed will be:

 Array (  [0] => Array   (    [0] => green    [1] => red   )  [1] => 4  [2] => php ) Array (  [2] => Array   (    [0] => green    [1] => red   )  [1] => 4  [0] => php ) 

See Also

  • array_flip() - Exchanges all keys with their associated values in an array



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