The Aspell functions enable you to implement a simple method of spell checking. This is ideal for checking spelling in user input and so on. At the time of writing, current versions of Aspell lacked the correct libraries for support in PHP. You need to obtain an earlier version of Aspell (0.26.2 works), although the author says this will be included again in later versions. You can obtain Aspell from http://aspell.sourceforge.net/. Please be aware that with the release of the pspell extension in PHP 4.0.2, aspell is no longer a supported extension.
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.