February 2013
Intermediate to advanced
538 pages
20h 55m
English
Content preview from Programming PHP, 3rd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Templating Systems
A templating system provides a way of separating the code in a web page from the layout of that page. In larger projects, templates can be used to allow designers to deal exclusively with designing web pages and programmers to deal (more or less) exclusively with programming. The basic idea of a templating system is that the web page itself contains special markers that are replaced with dynamic content. A web designer can create the HTML for a page and simply worry about the layout, using the appropriate markers for different kinds of dynamic content that are needed. The programmer, on the other hand, is responsible for creating the code that generates the dynamic content for the markers.
To make this more concrete, let’s look at a simple example. Consider the following web page, which asks the user to supply a name and, if a name is provided, thanks the user:
<html><head><title>UserInformation</title></head><body><?phpif(!empty($_GET['name'])){// do something with the supplied values ?><p><fontface="helvetica,arial">Thankyouforfillingouttheform,<?phpecho$_GET['name']?>.</font></p><?php}else{?><p><font face="helvetica,arial">Please enter thefollowing information:</font></p><form action="<?phpecho$_SERVER['PHP_SELF']?>"><table><tr><td>Name:</td><td><input type="text" name="name" /><input type="submit" /></td></tr></table></form><?php}?></body></html>
The placement of the different PHP elements within ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.