The PHP License v3.0.1 is a non-copyleft free software license. It is incompatible with the GNU GPL because it includes strong restrictions on the use of “PHP” in the name of derived products. This license is used primarily with the PHP package itself and by a few related open source projects.
The PHP License, version 3.01
Copyright (c) 1999 - 2014 The PHP Group. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, is permitted provided that the following conditions are met:
"This product includes PHP software, freely available from <http://www.php.net/software/>".
THIS SOFTWARE IS PROVIDED BY THE PHP DEVELOPMENT TEAM ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PHP DEVELOPMENT TEAM OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals on behalf of the PHP Group.
The PHP Group can be contacted via Email at firstname.lastname@example.org.
For more information on the PHP Group and the PHP project, please see <http://www.php.net>.
PHP includes the Zend Engine, freely available at <http://www.zend.com>