The PHP-Nuke modules are PHP-written applications that manage the central part of the site. For example, the "News", "Forum", "Members List" etc. are all modules.
Each module, based on it's complexity, is structured using one part for the user's and another for the administrator, in this case there are some contents we have to modify. It's all managed from the
modules.php file which alone, carries out the job of authentication and management of the access rights on that module. The modules.php file checks and verifies if the module was activated or not,
and verifies the access rights. This saves us a lot of work because we don't have to insert these controls in every module we create.
We refer you to what is written in Section 9.3 to be more exhaustive.
For example in the avantgo module, in order to load the index.php file, it's enough to pass the module name to the parameter string, the file that will be searched for is index.php.
If instead we wanted to call a page different from the default index.php (say, print.php), the string we will have to pass is :
modules.php?name=AvantGo & file=print
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That is the file variable with a value (print) that corresponds to the name of the file we want to load without the .php extension.
Inside of the folder modules/nameofmodule there is also a subfolder called "language". In this fashion we manage in a simple and immediate way the multilanguage functionality inside the
modules.
The rows modules.php work in this way:
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It includes the mainfile.php
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Verifies if the module is active
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Verifies whether the string passes a file name different from index.php
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Verifies the permissions of the module (whether everybody can see it, or only registered users, or only the administrator).
![[Valid RSS]](http://www.ravenphpscripts.com/images/valid-rss.png "Validate my RSS feed"){kind=small}
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