ZyXEL Communications NSA325 User Manual page 533

5. The PHP Group may publish revised and/or new versions of the
license from time to time. Each version will be given a
distinguishing version number.
Once covered code has been published under a particular version
of the license, you may always continue to use it under the terms
of that version. You may also choose to use such covered code
under the terms of any subsequent version of the license
published by the PHP Group. No one other than the PHP Group has
the right to modify the terms applicable to covered code created
under this License.
6. Redistributions of any form whatsoever must retain the following
acknowledgment:
"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.
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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 group@php.net.
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>.
This Product includes AutoXS-Header, Class-C3-XS, Class-XSAccessor, Class-XSAccessor-Array, Compress-Raw-Zlib,
Digest-SHA1, EV, ExtUtils-Cbuilder, GD, HTML-Parser, JSON-XS, Module-Build, Sub-Name, Template-Toolkit and XML-Parser
software under the same terms as Perl 's license
Perl5 is Copyright (C) 1993-2005, by Larry Wall and others.
It is free software; you can redistribute it and/or modify it under the terms of either:
a) the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later
version, or
b) the "Artistic License".
For those of you that choose to use the GNU General Public License, my interpretation of the GNU General Public License is that
no Perl script falls under the terms of the GPL unless you explicitly put said script under the terms of the GPL yourself.
Furthermore, any object code linked with perl does not automatically fall under the terms of the GPL, provided such object code
only adds definitions of subroutines and variables, and does not otherwise impair the resulting interpreter from executing any
standard Perl script. I consider linking in C subroutines in this manner to be the moral equivalent of defining subroutines in the Perl