Individual key/value pair from an array; FALSE if the internal array pointer has gone outside the bounds of the array
This function (actually a language construct) returns the key and value of the element of array at which the internal array pointer is currently pointing. The returned array has the following structure:
When complete, each() advances the internal pointer to the next element of array .
Note that while you may be tempted to try something like this, you won't get the expected result:
The above code snippet leads to an infinite loop, since explode() is called on every call to each() , effectively resetting the array pointer to the beginning of the array that it returns. More correctly, on each call it creates a new array with a new pointer, which is set to the first element of the returned array. For this reason, it's advisable to use each() only on arrays contained within variables.
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.