[wp-kama embed] https://wp-kama.com/2409 Remove WP action/filter of instance

remove_object_filter.php

<?php

/**
 * Remove Class Action Without Access to Class Object
 *
 * @see remove_object_filter()
 */
function remove_object_action( string $hook_name, $static_callback, $priority = null ): bool {
	return remove_object_filter( $hook_name, $static_callback, $priority );
}

/**
 * Remove filters without access to class object (instance).
 *
 * To use remove_filter() function you need to have access to class instance,
 * or the filter should be added using static method as hook callback.
 * This function allows you to remove filters with callbacks you don't have access to.
 *
 * @param string       $hook_name          Filter name to remove.
 * @param string|array $static_callback    Hook callback where instance represented as class name.
 *                                         Eg: [ '\Space\My_Class', 'my_method' ] OR '\Space\My_Class' to remove all methods added to hook.
 * @param int|null     $priority           (optional) Priority of the filter. If not set all hooks with any priority will be removed.
 *
 * @return bool Whether the hook is removed.
 *
 * @requires WP 4.7+
 * @author   Kama (wp-kama.com)
 * @version  2.0
 */
function remove_object_filter( string $hook_name, $static_callback, $priority = null ): bool {
	if( is_string( $static_callback ) ){
		// '\Space\My_Class::my_method' or '\Space\My_Class'
		$static_callback = explode( '::', $static_callback ) + [ '', '' ];
	}

	$found = _find_hook_callback_instances( $hook_name, $static_callback, $priority );

	$res = 0;
	foreach( $found as $item ){
		$callback = [ $item['instance'], $item['method'] ];
		$res += (int) remove_filter( $hook_name, $callback, $item['priority'] );
	}

	return (bool) $res;
}

/**
 * Finds the instance of the object whose specified method is added for the specified hook.
 *
 * To use remove_filter() function you need to have access to class instance,
 * or the filter should be added using static method as hook callback.
 * This function allows you to find class instance that was used when the hook was added.
 *
 * @param string       $hook_name          Filter name.
 * @param string|array $static_callback    Hook callback where instance represented as class name.
 *                                         Eg: [ '\Space\My_Class', 'my_method' ]
 *                                         or [ '\Space\My_Class' ] to get all methods added for the hook.
 * @param int|null     $priority           (optional) Priority of the filter.
 *
 * @return array{ instance: object|string, method:string, priority:int }[]
 *
 * @author  Kama (wp-kama.com)
 * @version 1.1
 */
function _find_hook_callback_instances( string $hook_name, array $static_callback, $priority = null ): array {
	global $wp_filter;

	/** @var \WP_Hook $wp_hook WP hooks. */
	$wp_hook = $wp_filter[ $hook_name ] ?? null;

	if( empty( $wp_hook->callbacks ) ){
		return [];
	}

	$find_class_name = ltrim( $static_callback[0], '\\' ); //> \Space\My_Class >>> Space\My_Class
	$find_method_name = $static_callback[1] ?? '';

	$found = [];
	foreach( $wp_hook->callbacks as $the_priority => $hooks_data ){
		foreach( $hooks_data as $hook_data ){
			$real_callback = $hook_data['function'] ?? null;
			if( ! is_array( $real_callback ) ){
				continue;
			}

			[ $object, $the_method_name ] = $real_callback;
			$class_name = is_object( $object ) ? get_class( $object ) : $object;

			if(
				$class_name !== $find_class_name
				|| ( $find_method_name && $the_method_name !== $find_method_name )
				|| ( null !== $priority && $the_priority !== $priority )
			){
				continue;
			}

			$found[] = [
				'instance' => $object,
				'method' => $the_method_name,
				'priority' => $the_priority,
			];
		}
	}

	return $found;
}