Import HTML As String With PHP Vars -

i've got ajax call returning html. html created , returned in function so:

function return_html(){     $title = 'my form';     $returnobject = array();     $returnobject['html'] = '                 <form>                     <h1>' . $title . '</h1>                     <input type="text" name="title"/>                 </form>     ';      return json_encode($returnobject); } 

what i'd write .php file of html , vars in this...

<form>     <h1><?php echo $title ?></h1>     <input type="text" name="title"/> </form> 

and in function import file string vars set sorta this:

function return_html(){     $title = 'my form';     $returnobject = array();     $returnobject['html'] = my_file_as_string_but_with_vars_replaced('formfile.php');        return json_encode($returnobject); } 

thoughts?

perhaps

function return_html() {     $title = 'my form';      ob_start();     require 'formfile.php';     $returnobject = array('html' => ob_get_clean());      return json_encode($returnobject); }