The theme footer also is the place where the PHP-Nuke copyright notice comes in. You don't need to do anything for this, it is done automatically as follows (see
PHP-Nuke Copyright and Logo):
The function themefooter() in theme.php contains a call to the footmsg() function, as in the following example from the Milo theme (file themes/Milo/theme.php):
echo "</td>\n"
."</tr></table>\n"
."<table bgcolor=\"#000000\" width=\"750\"
cellpadding=\"0\" cellspacing=\"0\" border=\"0\" align=\"center\">\n"
."<tr>\n"
."<td width=\"750\" height=\"5\">
<img src=\"themes/Milo/images/bottombar.gif\" width=\"750\"
height=\"5\" border=\"0\" alt=\"\"></td>\n"
."</tr>\n"
."<tr>\n"
."<td width=\"100%\"><img src=\"themes/Milo/images/pixel.gif\"
width=\"1\" height=\"1\" border=\"0\" alt=\"\"></td>\n"
."</tr>\n"
."</table>\n"
."<br>\n"
."<br>\n"
."<table width=\"750\" cellpadding=\"0\" cellspacing=\"0\"
border=\"0\" align=\"center\">\n"
."<tr align=\"center\">\n"
."<td width=\"100%\" colspan=\"3\">\n";
footmsg();
echo "</td>\n"
."</tr>\n"
."</table>\n";
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footmsg, in turn, is defined in the footer.php file (located in the root directory, together with config.php, mainfile.php and the other important files). There, among some code that displays the
computation time it took to display the page, we read:
// DO NOT REMOVE THE FOLLOWING COPYRIGHT LINE.
YOU'RE NOT ALLOWED TO REMOVE NOR EDIT THIS.
echo "$copyright<br>$totaltime<br>\n</font>\n";
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So that's the place where the Copyright notice for PHP-Nuke comes from! Does that mean that, now that we have found it, we are entitled to edit or remove it?
Absolutely NOT! In the INSTALL file that comes with the PHP-Nuke package, Franzisco Burzi, the author of PHP-Nuke explicitly forbids
this:
##############################################################################
# I M P O R T A N T N O T E #
##############################################################################
# IMPORTANT: I saw many sites that removes the copyright line in the footer #
# of each page. YOU'RE NOT ALLOWED TO REMOVE NOR CHANGE/EDIT THAT NOTE. If I #
# still see this problem happening I'll need to take extreme measures that #
# can include: to change the <application>PHP-Nuke</application> license, to encrypt some parts of the #
# code, stop distributing it for free and in an extreme case stop developing #
# it. The decision is in your hands. #
# If you do not agreed with this simple rule, delete all <application>PHP-Nuke</application> files #
# rigth now and move away from it. Thanks. #
##############################################################################
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Still, even this simple and clear admonition from the author does not stop some folks to pose the same question in the forums again and again: Am I allowed to take the Copyright Notice away? The
argument often presented is one that involves the Licence uder which PHP-Nuke is released, the GNU
General Public Licence (GPL). If I am allowed to change the code under the GPL, the argument goes, and the Copyright Notice is generated by a function call to footmsg(), why not just change the
code and delete that call in my theme? I can do this, right?
Wrong. In an article titled PHP-Nuke GPL Copyright Removal Question Finally Solved, MissS
writes:
A while back, questions were raised as to whether or not the copyright notice at the bottom of PHPNuke created pages could be removed. Now there is an answer to this question, straight from the
GNU people.
The GNU website states that if you have any questions concerning licensing, you can simply email them for clarification. That is exactly what I did and what
follows is my email to them...
So MissS wrote to licensing@gnu.org on Sept. 19th, 2002 and asked:
I have a question about the GNU/GPL license. There is a program called PHP-Nuke that has been released under this license. (This program can be found at
www.phpnuke.org) This program is a content management system that provides the structure for a website along with the means to administer that site.
What I would like to know is this: if I use this PHPNuke program to create my website, must the copyright notice (that is included at the bottom of each page that is created with PHPNuke) remain
there in order to remain in compliance with this license? There is also a copyright notice within the source code files themselves.
Dave Turner's answer was clear, albeit somewhat lapidary:
Yes. See section 2c of the GPL for details.
MissS was also confused as to whether PHP-Nuke can be technically considered as what the GPL in its 2c section calls a program that "normally reads commands
interactively when run" , in which case it must, among other things, "print or display an announcement including an appropriate copyright notice":
This subject came up a while back at PHPNuke.org and no-one seemed to know the real
answer. I have spent quite sometime reading over your license and can't definitively figure out
this answer for myself. (I had questions such as: is the output from a program like this truly
considered interactive or not?)
Please let me know. I don't want to remove the copyright footers on the output pages if I am
not legally allowed to do so.
To which Dave Turner replied:
I think a web-based message board clearly reads commands interactively. So, if there is such a notice, you can't remove it. But you could alter its form, so long as it is still appropriate.
-Dave Turner
Free Software Licensing Guru
This is not legal advice. If you need legal advice, see a lawyer.
This pretty much says it all.