WP_Hook::remove_filter( string $hook_name, callable|string|array $callback, int $priority )

Removes a callback function from a filter hook.

Parameters

$hook_name: (Required) The filter hook to which the function to be removed is hooked.
$callback: (Required) The callback to be removed from running when the filter is applied.<br> This method can be called unconditionally to speculatively remove a callback that may or may not exist.
$priority: (Required) The exact priority used when adding the original filter callback.

Return

(bool) Whether the callback existed before it was removed.

Source

	public function remove_filter( $tag, $function_to_remove, $priority ) {
		$function_key = _wp_filter_build_unique_id( $tag, $function_to_remove, $priority );

		$exists = isset( $this->callbacks[ $priority ][ $function_key ] );
		if ( $exists ) {
			unset( $this->callbacks[ $priority ][ $function_key ] );
			if ( ! $this->callbacks[ $priority ] ) {
				unset( $this->callbacks[ $priority ] );
				if ( $this->nesting_level > 0 ) {
					$this->resort_active_iterations();
				}
			}
		}
		return $exists;
	}

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Changelog

Changelog
Version	Description
4.7.0	Introduced.