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Name

next — Advances the internal array pointer to the next element and returns that element's value.

Synopsis

mixed next(array); array array: Array for which to advance the pointer

Returns

Contents of the next element in the array; FALSE when there are no more elements

Description

This function advances the internal array pointer to the next element of array and returns that element's value. This can be useful with current() and prev() to traverse an array; however, this is dangerous. The reason is that next() returns the value of the element found; if this evaluates to FALSE, there is no way to tell whether you've actually hit the end of the array being traversed, or the next element simply has a value of FALSE.

Version

PHP 3, PHP 4

Example

Example 53. Advance the internal array pointer

$my_array = array('a', 'b', 'c', 'd', 'e');
echo current($my_array);
for ($i = count($my_array); $i >= 0; $i--) {
   echo "\n" . next($my_array);
}

Output:
a
b
c
d
e

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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.