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Best pracice to initialize a web application in oop (no framework)

Posted on 2012-03-20
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Last Modified: 2012-06-27
Hi all, Experts.

I'm writing a web application and I would to know how to initilize all constant (such as db connection data, directories etc), classes and so on.

I read about bootstrap file but I'm not sure to understand the tecnique ( more details here: http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/Q_27638280.html#a37740820).

Thanks to all in advance.

Cheers
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Question by:Marco Gasi
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Ray Paseur earned 500 total points
ID: 37741960
I don't adhere to rigidly to OOP principles; I use them when it helps make things clear and use procedural code when that is the easiest way to get results.  My general design pattern goes like this:

// ON EVERY PAGE AND SCRIPT
require_once('common.php');

That include() starts the session, connects and selects the data base, initializes all the constants and variables, sets the timezone, etc.  In other words, all of the housekeeping is done with a single line of code.  That script also contains all of my class and function definitions.  In the case of some sites, it is a fairly big file (perhaps 50K) but since it is all in one script file and uses no autoloaders, it is very fast.  Obviously version control is important here.  If I were in a development and debugging mode, I might consider using several "common.php" scripts to isolate functionality and create independence between things that are being separately developed.  But once I am fairly sure that all the parts work correctly, I put them together into a single common file.

If it is a web service (not a web page) that is all the initialization I need, and there is no client HTML output.  If is is a web page, I have two other statements that are required.

require_once('header.php');
// PAGE GETS CREATED HERE
require_once('footer.php');

In between those two, I put the PHP and HTML that generate the web page.
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by:Marco Gasi
ID: 37742458
Hi, Ray. Thank you very mutch for your answer. Probably you have read yet my comment in my other question (http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/Q_27638280.html#a37740820). If not, please, refer to that.

Thank you again

Cheers
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