Writing a Template System in PHP - Help Please

I was a little confused when reading the tutorial because I am new to the whole templating thing. Anyway, below I will have the error and code. Thanks in advance to anyone who helps or tries to help!

--- Error ---

Fatal error: Cannot instantiate non-existent class: page in /home/whomikey/public_html/template system/index.tpl.php on line 4

--- index.tpl.php/template.tpl ---

<?
require_once('lib/template.php');

$page = new Page('std.tpl');

$page->replace_tags(array(
'title' => 'title',
'user_bar' => 'dat/user_bar.dat',
'navigation' => 'dat/navigation.dat',
'main' => 'dat/index.dat',
'affiliates' => 'dat/affiliates.dat',));

$page->output();
?>

it almost looks like its not finding the class functions.

I have the code for std.tpl which has all the functions if you need to see that. I will post it below to save time. It's the same as the one that was in the tutorial because I didn't want to change around or add anything untill I get it working from the way it was originally.

--- std.tpl ---

<?
class Page
{
var $page;

function Page($template = 'std.tpl') {
if (file_exists($template))
$this->page = join('', file($template));
else
die("Template file $template not found.");
}

function parse($file) {
ob_start();
include($file);
$buffer = ob_get_contents();
ob_end_clean();
return $buffer;
}

function replace_tags($tags = array()) {
if (sizeof($tags) > 0)
foreach ($tags as $tag => $data) {
$data = (file_exists($data)) ? $this->parse($data) :
$data;
$this->page = eregi_replace('{' . $tag . '}', $data,
$this->page);
}
else
die('No tags designated for replacement.');
}

function output() {
print($this->page);
}
}
?>

The tpl files are for your html templates. You need to put those functions in a php file and require_once that php file you put them in.

I am a little confused with what you just said, lol. Would that mean std.tpl = std.php and index.tpl.php = index.php? If you can explain it a little more to me. Thanks!

put the Page class in a separate file. Call it template.php

Now, use this code:



That will take std.tpl, and replace all of the tags in it that you want it to from above, and your Page class resides in template.php

Hehe, I tried to do it but I know I did it wrong because I am still confused and there was an error. When you get time it would be cool if you could checkout my code I will post it for each page below. Thanks for the help so far!

--- template.php ---

<?
class Page
{
var $page;

function Page($template = 'std.tpl') {
if (file_exists($template))
$this->page = join('', file($template));
else
die("Template file $template not found.");
}
}
?>

--- template.tpl ---

<?
require_once('template.php');

$page = new Page('std.tpl');

$page->replace_tags(array(
'title' => 'title',
'user_bar' => 'dat/user_bar.dat',
'navigation' => 'dat/navigation.dat',
'main' => 'dat/index.dat',
'affiliates' => 'dat/affiliates.dat',));

$page->output();
?>

--- std.tpl ---

<?
function parse($file) {
ob_start();
include($file);
$buffer = ob_get_contents();
ob_end_clean();
return $buffer;
}

function replace_tags($tags = array()) {
if (sizeof($tags) > 0)
foreach ($tags as $tag => $data) {
$data = (file_exists($data)) ? $this->parse($data) :
$data;
$this->page = eregi_replace('{' . $tag . '}', $data,
$this->page);
}
else
die('No tags designated for replacement.');
}

function output() {
print($this->page);
}
?>

*doh* lol....

The idea of the object oriented style is for the templating functions to be in the same class.....

template.php:

I got it working finally! Thanks a lot for helping me.