How show smarty template from string in yii2? - php

Question

I wanna use smarty template engine in yii2.
In my project, i need load view codes from database and render them from controller.
My question is this:
Is there any way to render a view code from string and control it like common render?
i need something like below:
$this->renderAsString($templateStr, ['param1'=>$val1, 'param2'=>$val2]);
this is important for me can access variable and function like as below code in index.tpl file.
$this->render('index.tpl'['param1'=>$val1, 'param2'=>$val2]);
I read this http://www.smarty.net/docs/en/resources.string.tpl but my answer is different, i think.

Answer 1

There is special separate extension called yii2-smarty for rendering views with Smarty. You need to install it via Composer, then configure like this for usage:
return [
//....
'components' => [
'view' => [
'renderers' => [
'tpl' => [
'class' => 'yii\smarty\ViewRenderer',
//'cachePath' => '#runtime/Smarty/cache',
],
],
],
],
];
As for your specific problem, look at these two issues on Github:
Add ability to render view from string
View renderer from db - not implemented yet
Core developer Klimov Paul recommends to use eval, but also in Smarty dedicated function exists exactly for these kind of situations.
Example 8.4. Another {eval} example
This outputs the server name (in uppercase) and IP. The assigned
variable $str could be from a database query.
<?php
$str = 'The server name is {$smarty.server.SERVER_NAME|upper} '
.'at {$smarty.server.SERVER_ADDR}';
$smarty->assign('foo',$str);
?>
Where the template is:
{eval var=$foo}