How to set the font and font size of GtkLabel in PHP GTK

If you want to change the font and font size of GtkLabel in PHP GTK 2. may this post is helpful to you.

<?php
/* 
PHP GTK tutorials
website: http://phpgtktutorials.blogspot.in/
*/
$window = new GtkWindow();
$window->set_size_request(500, 300);
$window->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse("#FFFF00"));
$window->connect_simple('destroy', array('Gtk','main_quit'));
$label = new GtkLabel("hello buddy!");
$label->modify_font(new PangoFontDescription('Times New Roman 48')); // set font style 
$window->add($label);
$window->show_all();
Gtk::main();
?>