remove_action_by_class.php

<?php


/**
 * Function remove_action_by_class
 * Used to remove notices and nags or other class actions added with class instances (unable to remove with remove_action)
 *
 * @param     $hook_name
 * @param     $class_and_function_list
 * @param int $priority
 */
public static function remove_action_by_class( $hook_name, $class_and_function_list, $priority = 10 ) {
  global $wp_filter, $wp_version;
  $core_version = floatval( $wp_version );

  if ( $core_version >= 4.7 ) {
    // go through manually created class and function list
    foreach ( $class_and_function_list as $class_search => $function_search ) {
      //limit removals to matching action names (wildcard string matching)
      // check to make sure the filter we want exists
      if ( ! empty( $wp_filter[ $hook_name ]->callbacks[ $priority ] ) ) {
        foreach ( $wp_filter[ $hook_name ]->callbacks[ $priority ] as $instance => $action ) {
          // limit removals again to matching class and function names (wildcard string matching)
          if ( stristr( $instance, $function_search ) && stristr( get_class( $action['function'][0] ), $class_search ) ) {
            // action found, removing action from filters
            unset( $wp_filter[ $hook_name ]->callbacks[ $priority ][ $instance ] );
          }
        }
      }
    } // end foreach $class_and_function_list
  } else {
    // Remove action by hook for versions older than 4.7
    // go through manually created class and function list
    foreach ( $class_and_function_list as $class_search => $function_search ) {
      //limit removals to matching action names (wildcard string matching)

      // check to make sure the filter we want exists
      if ( ! empty( $wp_filter[ $hook_name ][ $priority ] ) ) {
        foreach ( $wp_filter[ $hook_name ][ $priority ] as $instance => $action ) {
          //limit removals again to matching class and function names (wildcard string matching)
          if ( stristr( $instance, $function_search ) && stristr( get_class( $action['function'][0] ), $class_search ) ) {
            //action found, removing action from filters
            unset( $wp_filter[ $hook_name ][ $priority ][ $instance ] );
          }
        }
      }
    } // end foreach $class_and_function_list
  } // end version check if statement
} // end remove_action_by_class