<?php
// Say 'hi' on the terminal 
function sayHi() 
{
    echo 'Hi';
}

// Make a button shut up.
function beQuiet(&$button, $handler)
{
    $button->disconnect($handler);
}

// Set up the window
$window =& new GtkWindow;
$hBox   =& new GtkHBox;

// Make a button that says hi.
$button1 =& new GtkButton('Say Hi');
$handler =  $button1->connect('clicked', 'sayHi');

// Make the first button shut up when the second is clicked.
$button2 =& new GtkButton('Be Quiet!');
$button2->connect_object('clicked', 'beQuiet', $button1, $handler);

$hBox->pack_start($button1);
$hBox->pack_start($button2);

$window->add($hBox);
$window->show_all();
gtk::main();
?>