Rendering (templating) in pure PHP without special dependencies?

Question

PHP

We need an example (piece of code) of a template engine in pure php. What we call in the controller, where we select a template, and pass variables to the view. Solutions from frameworks have dependencies, they are not allowed in this case

Answer 1

The correct code should look like this.

/**
 * Renders template
 *
 * @param string 0 Name of your template
 * @param mixed 1 Data passed to template
 * @return string
 */
function template()
{
    extract(func_get_arg(1));

    ob_start();

    if (file_exists(func_get_arg(0))) {
        require func_get_arg(0);
    } else {
        echo 'Template not found!';
    }

    return ob_get_clean();
}
// Usage
echo template('30.php', ['hello' => 'world!']);

Although in general the idea of ​​using pure PHP as a templating language stinks. I recommend Smarty.

Answer 2

Create a separate template function:

function template($__view, $__data)
{
    extract($__data);

    ob_start();
    
    require $__view;

    $output = ob_get_clean();

    return $output;
}

The arguments are named so as not to occupy the names $view and $data.
In the template (profile.php):

// код
<?php echo $name ?>
// код

Usage:

echo template('views/profile.php', ['username' => 'John']);