Deprecated function: session_set_save_handler(): Providing individual callbacks instead of an object implementing SessionHandlerInterface is deprecated in drupal_session_initialize() (line 245 of includes/session.inc).
Deprecated function: Creation of dynamic property alpha_theme_container::$delta is deprecated in alpha_theme_container->__construct() (line 25 of sites/all/themes/contrib/omega/alpha/includes/base.inc).
Top 10 used hooks in Drupal 6 and 7 contrib modules
If you are a developer, you probably heard about all of them. However, you may also be surprised of this ordering and thought a bit differently as to which ones are most used. So let’s see what they are and what they do - from number 10 down.