Including PHP script in templating system

[Aziz]

Hey guys. While working on the company website, I've implemented a small menu system. The templates, for example, "about.page.php" are as follows:

code:

{% Title: About} <p>Some text would go in a paragraph. Along with other HTML elements like:</p> <ul> <li>Lists</li> <li>Images</li> <li>etc</li> </ul>

The appropriate .page.php file is used to construct a Page class (based on the request url):

php:

class Page {         public $title, $body;         public $sidebar = false;                 public function __construct($filename, $replace = NULL)         {                 $f = fopen($filename, 'rb');                 $body = fread($f, filesize($filename));                 fclose($f);                                 $title = '';                 $sidebar = false;                                 preg_match('/{% title: (.+)}/im', $body, $matches);                 if ($matches[1]) $title = $matches[1];                                 preg_match('/{% sidemenu: (.+)}/im', $body, $matches);                 $sidebar = (strtolower($matches[1]) == 'yes');                                 // Replace any specified values                 if ($replace)                 {                         foreach ($replace as $key => $value)                         {                                 $body = str_ireplace("{% $key}", $value, $body);                         }                 }                                 // Strip contents of tags                 $body = preg_replace('/{%.*}.?\n/i', '', $body);                                 $this->title = $title;                 $this->sidebar = $sidebar;                 $this->body = $body;         } }

However, I may want to include some PHP code on certain pages, like a news feed, etc. What would be the best way to go about this?