/MessageDisplay/class/core/View.php

<?php
/**
 * Prepares the template-variables and loads retungs the output of the template 
 * file
 * 
 * @author Thomas Schuh based on http://tutorials.lemme.at/mvc-mit-php
 */
class View
{
	/**
	 * Path to the templates
	 * @var string
	 * @access private
	 */
	private $path = 'tpl';
	
	/**
	 * Name of the template, in this case the default template
	 * @var string 
	 * @access private
	 */
	private $template = 'page';

	/**
	 * Contains the variables, which should be embadded in the template
	 * @var array
	 * @access private
	 */
	private $_ = array();

	/**
	 * Assings a key value paare to the template variable
	 * @param string $key  the key
	 * @param string $value  the value
	 */
	public function assign($key, $value){
		$this->_[$key] = $value;
	}


	/**
	 * Sets the name of the template
	 *
	 * @param string [$template]  name of the template
	 */
	public function setTemplate($template = 'page'){
		$this->template = $template;
	}


	/**
	 * Loads and returns the template-file
	 *
	 * @return string  the output of the template, or an error message
	 * 				   if the file does not exits
	 */
	public function loadTemplate(){
		/**
		 * the name of the template-file (if it was not assinged 
	  	 * with the steTemplate() method)
		 */
		$tpl = $this->template;
		
		/**
		 * Creates the path to the template and checks it the file exists
		 */
		$file = $this->path . DIRECTORY_SEPARATOR . $tpl . '.tpl.php';
		print_r($file);
		$exists = file_exists($file);

		if ($exists){
			/**
			 * Saves the output first in a buffer
			 */	
			ob_start();
			/**
			 * Includes the template-file and saves it in $output
			 */
			include $file;
			$output = ob_get_contents();
			ob_end_clean();
				
			return $output;
		}
		else {

			return 'could not find template';
		}
	}
}
?>