class-view.php

<?php

class View {

    public static function __callStatic($name,$parameters) {

        try {

            //Get template name from method call
            $fname = TEMPLATES_DIR . implode('/', explode("_",$name) ).'.php';

            //Ensure this template exists
            if(file_exists($fname)) {
                //Set default parameters
                if(!isset($parameters[0]))
                    $parameters[0] = array();
                if(!isset($parameters[1]))
                    $parameters[1] = true;
                if(!isset($parameters[2]))
                    $parameters[2] = true;

                //Get parameters
                list($data,$echo,$extract) = $parameters;

                //By default the context will be extracted. This can be overriden if the template needs direct access
                if($extract)
                    extract($data);

                ob_start();
                include($fname);
                $buffer = ob_get_clean();

                //Function will always buffer and return, but can echoing can be disabled.
                if($echo)
                    echo $buffer;

                return $buffer;
            }
            else {
                throw new \Exception( "View Template not found: $fname", 1);
            }
        }
        catch (\Exception $e) {
            trigger_error($e->getMessage() , E_USER_WARNING);
        }
        return false;
    }
}

Usage:

View::admin_dashboard_widget( array( 'hello' => 'world' ) );

This loads templates/admin/dashboard/widget.php and creates a variable called $hello containing "world" ready for use in the template.