Hooks (actions, filters) (category)
| add_action() | Hooks a function on to a specific action. |
| add_filter() | Attaches the specified PHP function to the specified filter hook. Thus, when the filter is triggered, the value will be filtered by the specified PHP function. |
| apply_filters() | Applies the attached PHP function to the specified filter. |
| apply_filters_ref_array() | Executes the functions attached to the specified hook (filter). Parameters are passed in an array. Allows passing a parameter by reference. |
| current_filter() | Gets the name of the current filter. |
| did_action() | Retrieve the number of times an action (hook) is fired. |
| do_action() | Creates an event (a hook for a php function). For the function to work during the action, it should be added to this action with add_action(). |
| do_action_ref_array() | Creates an action (hook) on which PHP functions can then be attached. The arguments are passed as an array. |
| doing_action() | Checks whether the specified hook (filter, action) is currently being processed. |
| doing_filter() | Checks whether the specified hook (filter, action) is currently being processed. |
| has_action() | Checks if a function has been registered for the event hook. |
| has_filter() | Checks if any function is attached to the specified filter. You can specify the name of a specific function. |
| remove_action() | Removes a hook (event or filter). Removes the function attached to the specified hook. |
| remove_all_actions() | Removes all hooks for the specified event. |
| remove_all_filters() | Removes all hooks from the specified filter. |
| remove_filter() | Removes a function from a specified filter hook. |