Simple Templating Engine

simpletemplatingengine.php

<?php
	public function view($filename = 'home') {
    // Default values for every View
		$data = array(
			"app_title" => $this->app_title,
			"app_tagline" => $this->app_tagline,
			"app_url" => $this->app_url,
			"app_version" => $this->app_version,
			"user_name" => $this->user_name,
		);

    // Read the file
		if (file_exists('views/'.$filename.'.php')) {
			$file = file_get_contents('views/'.$filename.'.php');
		}else{
			$file = file_get_contents('views/home.php');
		}

    // Custom stuff for each View
		if ($filename == 'list') {
			$list = $this->get_list();
			$data = array_merge($data, array('list' => $list));
		}

    // Replace [custom values]
		foreach ($data as $key => $value) {
			$file = str_replace("[".$key."]", $value, $file);
		}

		return $file;
	}