ExpressionEngine's Hooks
Developers can hook into the core files to extend ExpressionEngine's native functionality by using any of the hooks included in the core files.
There are 191 hooks for ExpressionEngine development. You can view this same list at the official landing page for the hooks in the EE developer docs. Viewing any hook's page will show every add-on known to use that hook.
EE 1
EE 2
edit_entries_search_fields
Currently used in 2 add-ons.
EE 1
EE 2
edit_entries_search_form
Currently used in 10 add-ons.
EE 1
EE 2
edit_entries_search_tables
Not currently used.
EE 1
EE 2
edit_entries_search_where
Currently used in 7 add-ons.
EE 1
EE 2
edit_entries_start
Currently used in 4 add-ons.
EE 1
EE 2
edit_template_end
Not currently used.
EE 1
EE 2
edit_template_start
Currently used in 3 add-ons.
EE 1
EE 2
edit_trackback_form
Not currently used.
EE 1
EE 2
edit_wiki_article_end
Currently used in 4 add-ons.
EE 1
EE 2
edit_wiki_article_form_end
Currently used in 2 add-ons.
EE 1
EE 2
edit_wiki_article_form_start
Not currently used.
EE 1
EE 2
email_module_send_email_end
Currently used in 1 add-on.
EE 1
EE 2
email_module_tellafriend_override
Not currently used.
EE 1
EE 2
entry_submission_absolute_end
Currently used in 5 add-ons.
EE 1
EE 2
entry_submission_end
Currently used in 8 add-ons.
EE 1
EE 2
entry_submission_ready
Currently used in 1 add-on.
EE 1
EE 2
entry_submission_redirect
Currently used in 4 add-ons.
EE 1
EE 2
entry_submission_start
Currently used in 3 add-ons.
EE 1
EE 2
file_browser_start
Not currently used.
EE 1
EE 2
file_upload_form_start
Currently used in 1 add-on.
EE 1
EE 2
foreign_character_conversion_array
Currently used in 4 add-ons.
EE 1
EE 2
form_declaration_modify_data
Currently used in 3 add-ons.
EE 1
EE 2
form_declaration_return
Not currently used.
EE 1
EE 2
forum_submission_form_end
Not currently used.
EE 1
EE 2
forum_submission_form_start
Not currently used.
