"@ Nilaab" <[EMAIL PROTECTED]> wrote... :
> Hello everyone,
>
> I want to be able to use objects to create my future pages. My goal is to
> use methods of classes to make the original front-line script easier to
> read, while all the processing is done with a simple call to the different
> classes from a single class. Please read futher, as I'll get to a point and
> to my question...
>
> I have many classes that do different tasks, like formValidator.class,
> stringManipulator.class, db.class, fileManipulation.class, template.class,
> etc (these are self-explanitory as their names suggest). Then, I might have
> a class called category.class that adds, deletes, edits, moves, and renames
> categories within the filesystem and database. But I would have a front-line
> script called category.php that would call the necessary methods of
> category.class at certain points, depending on the task being done on a
> specific step.
>
> In other words I want category.class to call the other classes and do
> something with them, then in turn I want category.php to call objects in
> category.class for a specific task, such as:
>
> <?php
>
> // category.php
>
> include ("category.class");
> $cat = new category ();
> $cat->addCategory($new_cat_name);
> // or
> $cat->editCategory($cat_name);
> // or
> $cat->deleteCategory($cat_name);
> // or
> $cat->moveCategory($cat_name);
> // or
> $cat->renameCategory($cat_name);
>
> ?>
>
>
> My question is:
>
> How can I call a class within another class and do something with it? Right
> now I'm doing it the most convenient way I know, which is including other
> classes using the include() function within the methods of the
> category.class. There is no multiple-inheritance allowed in PHP, so I can
> only use inheritance on one class.
Including new classes within the existing classes is not such a bad idea
as it ensures you to have only the necessary classes called.
> I am also extremely skeptical about creating too many classes at a time in
> one script. Do the above examples degrade performance speed of the script
> when I call too many classes? Also, isn't there a way to use sessions to
> save created classes and then use them again for other scripts without the
> need to make a new instance of the same class again and again?
yes, you can serialize/unserialize classes into the sessions. This makes
it a little more complicated, but can be helpful sometimes.
> I am really looking for a better way to organize my code while still being
> able to use these classes whenever I need them and at the same time keeping
> the category.php file clean and easy to read. Is there a tutorial on how to
> organize code? I'm not looking for html template tutorials. Just how to get
> around inheritance limits while still keeping performance and clean-code in
> mind.
You know what I have once done? I created a file with functions that
return you the object pointers. It would create (declare) the class
whenever it was not declared before or just return the pointer from a
global variable if it was declared before. That way, you only load a few
functions, and whenever you need a class you assign a variable to the
function's return to have the class. This limits you script to only
classes you use and no includes within the script itself. A kind of
silly method, but can be easy to work with.
Also, check out the new Zend 2 engine, it has tons of improvements with
classes for PHP5. Currently the code is in CVS (checkout php5 module).
Changes are listed here:
http://cvs.php.net/co.php/ZendEngine2/ZEND_CHANGES
--
Maxim Maletsky
[EMAIL PROTECTED]
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