Core Class

WP_Hook

 class WP_Hook
// Constructor: function Object() { [native code] }

Core class used to implement action and filter hook functionality.

Methods 20 methods

Method / Return	Description
add_filter() void	Adds a callback function to a filter hook. Parameters: $hook_name: mixed, $callback: mixed, $priority: mixed, $accepted_args: mixed
resort_active_iterations() void	Handles resetting callback priority keys mid-iteration. Parameters: $new_priority: mixed, $priority_existed: mixed
remove_filter() bool	Removes a callback function from a filter hook. Parameters: $hook_name: mixed, $callback: mixed, $priority: mixed
has_filter() (bool	Checks if a specific callback has been registered for this hook. Parameters: $hook_name: mixed, $callback: mixed
has_filters() bool	Checks if any callbacks have been registered for this hook.
remove_all_filters() void	Removes all callbacks from the current filter. Parameters: $priority: mixed
apply_filters() mixed	Calls the callback functions that have been added to a filter hook. Parameters: $value: mixed, $args: mixed
do_action() void	Calls the callback functions that have been added to an action hook. Parameters: $args: mixed
do_all_hook() void	Processes the functions hooked into the 'all' hook. Parameters: $args: mixed
current_priority() (int	Return the current priority level of the currently running iteration of the hook.
build_preinitialized_hooks() WP_Hook[]	Normalizes filters set up before WordPress has initialized to WP_Hook objects. Parameters: $filters: mixed
offsetExists() bool	Determines whether an offset value exists. Parameters: $offset: mixed
offsetGet() mixed	Retrieves a value at a specified offset. Parameters: $offset: mixed
offsetSet() void	Sets a value at a specified offset. Parameters: $offset: mixed, $value: mixed
offsetUnset() void	Unsets a specified offset. Parameters: $offset: mixed
current() array	Returns the current element.
next() array	Moves forward to the next element.
key() mixed	Returns the key of the current element.
valid() bool	Checks if current position is valid.
rewind() void	Rewinds the Iterator to the first element.

Properties

Property / Type	Description
$callbacks mixed public	No description available.
$priorities mixed public	No description available.
$iterations mixed public	No description available.
$current_priority mixed public	No description available.
$nesting_level mixed public	No description available.
$doing_action mixed public	No description available.

Class Information

Since Version

4.7.0

Source File

wp-includes/class-wp-hook.php