This manual is Copyright 1997, 1998, 1999, 2000, 2001, 2002 by the PHP Documentation Group. The members of this group are listed on the front page of this manual.

This manual can be redistributed under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

The 'Extending PHP 4.0' section of this manual is copyright 2000 by Zend Technologies, Ltd. 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