恶魔的请求

Fatal error: Uncaught MongoDB\Driver\Exception\CommandException: $in needs an array in /www/wwwroot/swc-server/vendor/mongodb/mongodb/src/Operation/Find.php:263 Stack trace: #0 /www/wwwroot/swc-server/vendor/mongodb/mongodb/src/Operation/Find.php(263): MongoDB\Driver\Server->executeQuery() #1 /www/wwwroot/swc-server/vendor/mongodb/mongodb/src/Collection.php(648): MongoDB\Operation\Find->execute() #2 /www/wwwroot/swc-server/application/modules/comic/classes/comic_tag.class.php(79): MongoDB\Collection->find() #3 /www/wwwroot/swc-server/application/caches/caches_template/comic_gugu5/content/detail_comic.php(122): comic_tag->comments() #4 /www/wwwroot/swc-server/application/modules/content/comic.php(105): include('...') #5 /www/wwwroot/swc-server/framework/classes/application.class.php(27): comic->detail() #6 /www/wwwroot/swc-server/framework/classes/application.class.php(14): application->init() #7 /www/wwwroot/swc-server/framework/base.php(113): application->__construct() #8 /www/wwwroot/swc-server/framework/base.php(61): core_base::_load_class() #9 /www/wwwroot/swc-server/framework/base.php(50): core_base::load_sys_class() #10 /www/wwwroot/swc-server/web/index.php(16): core_base::creat_app() #11 {main} thrown in /www/wwwroot/swc-server/vendor/mongodb/mongodb/src/Operation/Find.php on line 263