Как брать шаблон не из файла, а из переменной?

[KarelWintersky]

https://smarty-php.github.io/smarty/stable/api/resources/

        $s = new \Smarty();
        $s->assign("settings", $settings);
        return $s->fetch('string:' . $template);

То есть нужна функция, аналогичная setTemplate(), только

• setTemplateFile() - файл шаблона
• setTemplate() - шаблон из строки или setTemplateContent()

Это обратно-несовместие изменение.

---

Smarty can render templates from a string by using the string: or eval: resource.

The string: resource behaves much the same as a template file. The template source is compiled from a string and stores the compiled template code for later reuse. Each unique template string will create a new compiled template file. If your template strings are accessed frequently, this is a good choice. If you have frequently changing template strings (or strings with low reuse value), the eval: resource may be a better choice, as it doesn\'t save compiled templates to disk.

The eval: resource evaluates the template source every time a page is rendered. This is a good choice for strings with low reuse value. If the same string is accessed frequently, the string: resource may be a better choice.

Adding your own resource type

<?php
class HelloWorldResource extends Smarty\Resource\CustomPlugin {

    protected function fetch($name, &$source, &$mtime) {
        $source = '{$x="hello world"}{$x}'; // load your template here based on $name
        $mtime = time();
    }

}

// ..

$smarty->registerResource('helloworld', new HelloWorldResource());