On Jan 24, 2008 3:00 PM, Jason Pruim <japruim@xxxxxxxxxx> wrote: > Hi everyone! > > So, I'm trying to learn about functions, and I think I understand what > to use them for... And one of the ideas I had was to write a function > to logout of an application. The question I have though, is how do I > call it? > > Right now I just have a link like this: <A href="logout.php">Click > here to logout</A> Can I do the same thing with a function? And if > so, then maybe I don't really understand functions like I thought I > did... Because to me, that would look like it would be just the same > as calling a single script to logout vs. a function? > -- > > Jason Pruim > Raoset Inc. > Technology Manager > MQC Specialist > 3251 132nd ave > Holland, MI, 49424 > www.raoset.com > japruim@xxxxxxxxxx > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > Keep your link as is. Create a page called logout.php. Make it look like something like this: <?php require_once 'functions.php'; logout(); require_once 'index.php'; ?> Then functions.php: <?php function logout() { session_destroy(); or whatever } ?> See the function is an idea of code to be run. You still have to access a function at some point and run it. The point though is that you call the function instead of having tons of code just littering up your page. It makes the logic flow of your scripts easier to understand. Another example would be a form processing page. You could do something like if (my_uber_form_processor() !== true) { require_once 'form.php'; exit(); } require_once 'success.php'; This way you keep the logic of how your pages work separate from the gritty details of what form processing is or how you log out. This is a oversimplification, but hopefully it might make something in your head click. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
