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array_reverse
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array_reverse

Name

array_reverse — Returns a copy of the original array in reverse order.

Synopsis

array array_reverse(array); array array: Array of values to reverse

Returns

Array in reverse order from the input array; NULL on failure

Description

Creates a copy of the given array in reverse order, with key/value relationships intact. It returns the copy while leaving the original array untouched.

Version

PHP 4 since 4.0b4

Example

Example 30. Reverse the order of an array's elements

$ax = array("a" => "alpha", "b" => "bravo", "c" => "charlie", "d" => "delta");
$reversed = array_reverse($ax);
print_r($reversed);

Output:
Array
(
    [d] => delta
    [c] => charlie
    [b] => bravo
    [a] => alpha
)

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PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.