remove_all_filters() │ WP 2.7.0

Removes all hooks from the specified filter.

The function removes all functions attached to the filter. If a priority is specified in the $priority parameter, then only hooks with the specified priority will be removed, not all...

Used By: remove_all_actions()

No Hooks.

Returns

true. Always returns true.

Usage

remove_all_filters( $tag, $priority );
$tag(string) (required)
The name of the filter whose hooks should all be removed.
$priority(int)

The priority of the hooks to remove.

  • If specified, only hooks with that priority will be removed.
  • If not specified (left false), then absolutely all hooks attached to the filter will be removed.

Default: false

Examples

1

#1 Remove all the functions (hooks) attached to the filter 

remove_all_filters( 'wp_mail_from' );
1

#2 Remove only the hooks with specified priority

Remove all functions (hooks) which was registered with default priority 10, for the filter the_content:

remove_all_filters( 'the_content', 10 );

This will cause most of the post text filters to be disabled - i.e., all filters with a priority of 10 will be disabled. These are:

// from file: /wp-includes/default-filters.php
add_filter( 'the_content', 'wptexturize'                       );
add_filter( 'the_content', 'wpautop'                           );
add_filter( 'the_content', 'shortcode_unautop'                 );
add_filter( 'the_content', 'prepend_attachment'                );
add_filter( 'the_content', 'wp_make_content_images_responsive' );

Since class-derived filters can be tricky to remove, if they use a non-default priority (take 15 for example), you could do this instead:

remove_all_filters( 'wp_delete_file', 15 );

Notes

  • Global. WP_Hook[]. $wp_filter Stores all of the filters and actions.

Changelog

Since 2.7.0 Introduced.

remove_all_filters() code WP 7.0

wp-includes/plugin.php 
function remove_all_filters( $hook_name, $priority = false ) {
	global $wp_filter;

	if ( isset( $wp_filter[ $hook_name ] ) ) {
		$wp_filter[ $hook_name ]->remove_all_filters( $priority );

		if ( ! $wp_filter[ $hook_name ]->has_filters() ) {
			unset( $wp_filter[ $hook_name ] );
		}
	}

	return true;
}

Filters (hooks)

Hooks (actions, filters)