Course user see the private replies(update)

Course users see the private replies of forum's topic

if(!empty($GLOBALS['bbp_private_replies'])){

	//settings in course settings page
	add_filter('wplms_course_creation_tabs','add_in_front_end');
	function add_in_front_end($settings){
		$fields = $settings['course_settings']['fields'];
		$arr=array(array(
			'label' => __('Course Students can see forum private reply','wplms-front-end'), // <label>
			'desc'  => __('Course Students can see forum private reply','wplms-front-end'), 
			'text'=>__('Forum private reply','wplms-front-end' ),// description
			'id'  => 'vibe_forum_private_reply_view', // field id and name
			'type'=> 'switch',
			'default'=>'H',
			'options'  => array('H'=>__('disable','wplms' ),'S'=>__('enable','wplms' )),
			'style'=>'',
			'from' => 'meta'
		));
		array_splice($fields, (count($fields)-1), 0,$arr );
		$settings['course_settings']['fields'] = $fields; 
	    return $settings;
	}

	//Check for private if course forum setting enabled then course users can see course forum's any topic's
	//private reply
    add_filter('user_can_view_private_replies',function($can_view,$reply_id,$user_id){
        if( ! $can_view ) {
            $forum_id = get_post_meta($reply_id,'_bbp_forum_id',true);
            global $wpdb;
            $course_id = $wpdb->get_var($wpdb->prepare("SELECT post_id FROM {$wpdb->postmeta} WHERE meta_key='vibe_forum' AND meta_value = %d",$forum_id));
            $course_ids = array();
            if(!empty($course_id) && !is_array($course_id)){
                $course_ids = (array)$course_id;
            }else if(!empty($course_id) && is_array($course_id)){
                $course_ids = $course_id;
            }
            if(!empty($course_ids) && is_array($course_ids)){
                $topic_id= bbp_get_reply_topic_id($reply_id);
                $topic_author_id = bbp_get_topic_author_id( $topic_id );
                foreach ($course_ids as $key => $id) {
                    if(bp_course_is_member($id,$user_id)){
                        $vibe_forum_private_reply_view = get_post_meta($id,'vibe_forum_private_reply_view',true);
                        if($vibe_forum_private_reply_view == 'S'){
                            $can_view = true;
                                    break;
                        }
                    }
                }
            }
        }
        return $can_view;
    },10,3);
}