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联动菜单（多选）设置后前端无法筛选数据问题。

注：联动菜单（单选）可以筛选

有个需求：

做筛选，有一条数据筛选时既想出现在北京里又要深圳里，用联动菜单多选做了，数据也选了。但前端无法做筛选。

模块里做了多选字段

模块里做了多选字段

前端的数据无法筛选，一直是这条测试数据

代码是用系统里的demo代码

                        
                            

                                
                                {search module=MOD_DIR id=$searchid total=$sototal order=$params.order catid=$catid page=1 pagesize=5 urlrule=$urlrule}
                                
                                    
                                        
                                    
                                    
                                        
                                            {$t.title}
                                        
                                        {$t.description}

                                        
                                            
                                                {php $kw=@explode(',', $t.keywords);}
                                                {loop $kw $a}
                                                {if $a}
                                                
                                                    {$a}
                                                
                                                {/if}
                                                {/loop}
                                            
                                            
                                                
                                                {$t.updatetime}