November 2002
Intermediate to advanced
640 pages
16h 33m
English
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11.12. Using Smarty Templates
Problem
You want to separate code and design in your pages. Designers can work on the HTML files without dealing with the PHP code, and programmers can work on the PHP files without worrying about design.
Solution
Use a templating system. One easy-to-use template system is called Smarty. In a Smarty template, strings between curly braces are replaced with new values:
Hello, {$name}The PHP code that creates a page sets up the variables and then displays the template like this:
require 'Smarty.class.php';
$smarty = new Smarty;
$smarty->assign('name','Ruby');
$smarty->display('hello.tpl');Discussion
Here’s a Smarty template for displaying rows retrieved from a database:
<html>
<head><title>cheeses</title></head>
<body>
<table border="1">
<tr>
<th>cheese</th>
<th>country</th>
<th>price</th>
</tr>
{section name=id loop=$results}
<tr>
<td>{$results[id]->cheese}</td>
<td>{$results[id]->country}</td>
<td>{$results[id]->price}</td>
</tr>
{/section}
</table>
</body>
</html>Here’s the corresponding PHP file that loads the data from the database and then displays the template, stored in food.tpl:
require 'Smarty.class.php';
mysql_connect('localhost','test','test');
mysql_select_db('test');
$r = mysql_query('SELECT * FROM cheese');
while ($ob = mysql_fetch_object($r)) {
$ob->price = sprintf('$%.02f',$ob->price);
$results[] = $ob;
}
$smarty = new Smarty;
$smarty->assign('results',$results);
$smarty->display('food.tpl');After including the base class for the templating ...
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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.
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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.