-PHP-GTK is a PHP extension that enables you to write client-side cross-platform
-GUI applications. This is the first such extension of this kind and one of the
-goals behind it was to prove that PHP is a capable general-purpose scripting
-language that is suited for more than just Web applications.
+PHP-GTK is a PHP extension that enables you to write client-side
+cross-platform GUI applications. This is the first such extension of
+this kind and one of the goals behind it was to prove that PHP is a
+capable general-purpose scripting language that is suited for more
+than just Web applications.
+
+This extension will _not_ allow you to display GTK+ programs in a Web
+browser, and cannot be used in the Web environment. It is intended for
+creating standalone GUI applications.