On Thu, Oct 21, 2010 at 04:05:50AM +0200, Rico Secada wrote: > Hi. > > I am working on a small system where I am both trying to avoid code > duplication and at the same time I am trying to keep the presentation > logic separated from the application logic. > > I am using sessions and are avoiding "headers already sent" problem by > keeping the HTML out of the application. > > For example, I would like to have a common header.php file, but it is > difficult to create this since one file needs to have some specific > Javascript located in the <head> </head> tags, but the other files > doesn't need this. > > Another file needs to have a specific "onload" call in the <body> tag, > while yet another file also needs to have an "onload" call, but with > different attributes. > > I have been looking around in other systems to see what kinds of > solutions are being used - as inspiration. > > I have been thinking about the following solutions: > > 1. Create only ONE header.php file that contains a lot of conditionals > depending on what file is including it - the output of HTML/Javascript > changes. > > I believe this would turn into a very ugly hack. Difficult to maintain. Not really. Here's what I do. I have a page controller which defines variables and such, and then calls the header.php file. The page controller will contain something like this: $meta['jsfiles'] = 'onload.js'; The header.php will contain code like this: <?php if (!empty($meta['jsfiles'])): ?> <?php include $meta['jsfiles']; ?> <?php endif; ?> The page controller can also contain a variety of other settings, like: $meta['content'] = 'cust_add.php'; and the header.php will contain: <?php include $meta['content']; ?> This directs the proper internal content for the header.php, which is really like a "template" file. Also remember that at the bottom of the page controller, you do a like like this: include 'header.php'; You can change this as you like for any given page controller. Paul -- Paul M. Foster -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
