Something

<?phpclass Page {	var $template;	protected $params = array();	function __construct($template, $fill = true) {		ob_start(array($this, 'output'));		$this->template = file_get_contents($template);		if($fill)			$this->fillTags();	}/*	function __set($tag, $content) {		$this->params['<!--$'.$tag.'-->'] = $content;	}*/	function __get($tag) {		return $this->params['<!--$'.$tag.'-->'];	}	function output($buffer) {		$this->assign('buffer', $buffer);		return str_replace(array_keys($this->params), array_values($this->params), $this->template);	}	function assign($id, $value = null) {		if(is_array($id))			foreach($id as $tag => $content)				$this->params['<!--$'.$tag.'-->'] = $content;		else			$this->params['<!--$'.$id.'-->'] = $value;	}		private function fillTags() {		preg_match_all('/<!--\$\w+-->/', $this->template, $a);		foreach($a[0] as $tag)			$this->params[$tag] = null;	}}