This is a continuation of the basic installation, please read that first!
A slightly more flexible way to setup Smarty is to extend the class and initialize your Smarty environment. So instead of repeatedly setting directory paths, assigning the same vars, etc., we can do that in one place.
Lets create a new directory /php/includes/guestbook/
and make a new file called setup.php. In our example
environment, /php/includes is in our
include_path.
Be sure you set this up too, or use absolute file paths.
Example 2.10. /php/includes/guestbook/setup.php
<?php
// load Smarty library
require('Smarty.class.php');
// The setup.php file is a good place to load
// required application library files, and you
// can do that right here. An example:
// require('guestbook/guestbook.lib.php');
class Smarty_GuestBook extends Smarty {
function __construct()
{
// Class Constructor.
// These automatically get set with each new instance.
parent::__construct();
$this->setTemplateDir('/web/www.example.com/guestbook/templates/');
$this->setCompileDir('/web/www.example.com/guestbook/templates_c/');
$this->setConfigDir('/web/www.example.com/guestbook/configs/');
$this->setCacheDir('/web/www.example.com/guestbook/cache/');
$this->caching = Smarty::CACHING_LIFETIME_CURRENT;
$this->assign('app_name', 'Guest Book');
}
}
?>
Now lets alter the index.php file to use
setup.php:
Example 2.11. /web/www.example.com/guestbook/htdocs/index.php
<?php
require('guestbook/setup.php');
$smarty = new Smarty_GuestBook();
$smarty->assign('name','Ned');
$smarty->display('index.tpl');
?>
Now you see it is quite simple to bring up an instance of Smarty, just use
Smarty_GuestBook() which automatically initializes everything for our
application.
require_once( CFG_DIR_SMARTY . '/class.Smarty.php' ); class SmartySingleton { static private $instance; private function __construct() {} private function __clone() {} private function __wakeup() {} static public function instance() { if( !isset( self::$instance ) ) { $smarty = new Smarty; $smarty->setTemplateDir( CFG_DIR_ROOT . '/templates/' ); $smarty->setCompileDir( CFG_DIR_ROOT . '/templates_c/' ); $smarty->setConfigDir( CFG_DIR_ROOT . '/configs/' ); $smarty->setCacheDir( CFG_DIR_ROOT . '/cache/' ); $smarty->caching = Smarty::CACHING_LIFETIME_CURRENT; $smarty->debugging = false; #define( 'CFG_DIR_TEMPLATES', $smarty->getTemplateDir(0) ); self::$instance = $smarty; }; return self::$instance; } }In you scripts write ( instance on first at first use )$smarty = SmartySingleton::instance(); $smarty->assig('bla', 'blabla');