To tie signals to a specific function in your PHP-GTK 1 code, you could use
The functionality of connect_object, in particular, wasn't
clear at first sight.
Following some changes made in the GTK signals API, the decision was taken
to rename connect_object to
connect_simple_after in PHP-GTK 2.
Simple here means that you have fewer function
parameters because the object itself is missing from them - something that
connect_object meant, but did not imply.