[WordPress] Remove the hook functions defined in object of class (移除寫在物件裡的 hook functions)

functions.php

<?php
// Remove hook functions (include actions and filters) that were defined in instances of class.
function remove_hooked_functions_in_obj($hook_tag = false, $class_name = '', $function_name, $priority = 10) {
  // Visit all hook tags if existed
  if (!empty($GLOBALS['wp_filter']) && !empty($GLOBALS['wp_filter'][$hook_tag])) {
    foreach($GLOBALS['wp_filter'][$hook_tag]->callbacks[$priority] as $callback) {
      // You can use get_class($obj) to get the class name which object belong
      if (
        $callback['function'] && 
        (is_a( $callback['function'][0], $class_name )) && 
        ($callback['function'][1] == $function_name) 
      ){
        $callable = [ $callback['function'][0], $function_name ];
        $GLOBALS['wp_filter'][$hook_tag]->remove_filter( $hook_tag, $callable, $priority );
        return true;
        break;
      }
    }
  }
  return false;
}