November 20th, 2002, 03:13 AM
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weirdomoderator
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Join Date: Jun 2002
Location: Alta, Norway
Posts: 370
Time spent in forums: < 1 sec
Reputation Power: 7
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Here's the whole thing.. indented 
PHP Code:
<?php
class Template {
var $_variables = array();
var $_caching = false;
var $_cacheDir = 'cache';
var $_cacheLifetime = 120;
function addVar($name, $value)
{
$variables = &$this->_variables;
$variables[$name] = $value;
}
function display($file, $id = false)
{
echo $this->fetch($file, $id);
}
function fetch($file, $id = false)
{
if ($this->_caching == true && $this->isCached($file, $id)) {
$output = $this->_getCache($file, $id);
} else {
$output = $this->_getOutput($file);
if ($this->_caching == true) {
$this->_addCache($output, $file, $id);
}
}
return isset($output) ? $output : false;
}
function _getOutput($file)
{
extract($this->_variables);
$file = realpath($file);
if (file_exists($file)) {
ob_start();
include($file);
$output = ob_get_contents();
ob_end_clean();
} else {
trigger_error("Failed opening the template file '$file'. The file doesn't exist.", E_USER_ERROR);
}
return !empty($output) ? $output : false;
}
function setCacheDir($dir)
{
$dir = realpath($dir);
if (is_dir($dir) && is_writable($dir)) {
$this->_cacheDir = $dir;
} else {
trigger_error("The cache directory '$dir' either doesn't exist, or it cannot be written to by PHP", E_USER_WARNING);
$this->_cacheDir = '';
$this->_caching = false;
}
}
function setCacheLifetime($seconds)
{
if (is_numeric($seconds)) {
$this->_cacheLifetime = $seconds;
}
}
function setCaching($state)
{
if (is_bool($state)) {
$this->_caching = $state;
}
}
function isCached($file, $id = false)
{
$id = $id ? md5($id . basename($file)) : md5(basename($file));
$filename = $this->_cacheDir . '/' . $id . '/' . basename($file);
if (is_file($filename)) {
clearstatcache();
if (filemtime($filename) > (time() - $this->_cacheLifetime)) {
$isCached = true;
}
}
return isset($isCached) ? true : false;
}
function _addCache($content, $file, $id = false)
{
$id = $id ? md5($id . basename($file)) : md5(basename($file));
$filename = $this->_cacheDir . '/' . $id . '/' . basename($file);
$directory = $this->_cacheDir . '/' . $id;
@mkdir($directory, 0775);
if ($fp = fopen($filename, 'wb')) {
fwrite($fp, $content);
fclose($fp);
}
}
function _getCache($file, $id = false)
{
$id = $id ? md5($id . basename($file)) : md5(basename($file));
$filename = $this->_cacheDir . '/' . $id . '/' . basename($file);
if ($fp = fopen($filename, 'rb')) {
$content = fread($fp, filesize($filename));
fclose($fp);
}
return isset($content) ? $content : false;
}
}
?>
__________________
Best Regards,
Håvard Lindset
Last edited by Lindset : November 20th, 2002 at 03:30 AM.
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