You have to declare the closure before you call add_menu_page()
:
$func = function() {
echo "Done !";
};
add_menu_page('My page','My page','manage_options','my_page', $func );
Note you need PHP 5.3 to do that.
You have to declare the closure before you call add_menu_page()
:
$func = function() {
echo "Done !";
};
add_menu_page('My page','My page','manage_options','my_page', $func );
Note you need PHP 5.3 to do that.