| 超越模板引擎 |
| 责任编辑：admin 更新日期：2005-8-6 |
template.
* If we didn't cache, it would be hitting the file system
* twice as much (file_exists() & filemtime() [twice each]).
*/
$this->cached = true;
return true;
}
}
/**
* This function returns a cached copy of a template (if it exists),
* otherwise, it parses it as normal and caches the content.
*
* @param $file string the template file
*
* @return string
*/
function fetch_cache($file) {
if($this->is_cached()) {
$fp = @fopen($this->cache_id, 'r');
$contents = fread($fp, filesize($this->cache_id));
fclose($fp);
return $contents;
}
else {
$contents = $this->fetch($file);
// Write the cache
if($fp = @fopen($this->cache_id, 'w')) {
fwrite($fp, $contents);
fclose($fp);
}
else {
die('Unable to write cache.');
}
return $contents;
}
}
}
?>
另外一个值得注意的重要的事情是这里展示的解决办法是我们传递模板的文件名给fetch()函数。如果你需要重用模板对象而不去re-set()所有的变量，这将比较有用。
并且记住：模板引擎的要点是把你的业务逻辑从你的表现逻辑中分离出来，而不是把你的PHP代码从HTML代码中分离出来。
本文附件下载：template.zip [1] http://www.massassi.com/bTemplate/
[2] http://smarty.php.net/
[3] http://www.sitepoint.com/examples/tempeng/template.zip
[4] http://opensource.org/licenses/mit-license.html
[5] http://www.opensource.org/
[6] http://zend.com/store/products/zend-performance-suite.php
[7] http://www.php-accelerator.co.uk/
[8] http://www.php.net/manual/en/control-structures.alternative-syntax.php
[9] http://wact.sourceforge.net/index.php/TemplateView
[10] http://www.phppatterns.com/index.php/article/articleview/11/
[11] http://simplet.sourceforge.net/
[12] http://phppatterns.com/index.php/article/articleview/4/1/1/
[13] http://smarty.php.net/
本文英文原版地址：http://www.sitepoint.com/article/1218/
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