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无限级别菜单的实现(其实还是有限级别的^0^)

WBOY
Release: 2016-06-21 09:11:37
Original
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菜单

  /* 看到很多朋友问过无限级别菜单的的问题(其实理论上还是有级别的,毕竟要受到个方便的条件的限制,比如: 数据库字段的类型等),我曾经用老大(唠叨)提供的代码写出来过无限级别的菜单,但是感觉效果不是很好(视觉上),于是趁着"夜深人静"就写这个"无限制级别的菜单",其实道理很简单,主要是数据表的设计,还有递归方法的使用(如果有时间我会用中值排序法来做),我会在下面给出数据结构的设计(非常简单),这里我没有加上竖直的虚线(windows资源管理器的虚线),同时Sql语句我也将其固定,大家可以根据自己的需要来修改!如果有问题可以联系我:msn:banneryue@sina.com,QQ:7665656,E_mail:yuepengfei@mail.banner.com.cn

明天(已经是今天了,呵呵)我会提供一个测试页面让大家来看(因为我在宿舍只能拨号上网,Ip地址不固定)

*/

/** 递归显示子节点函数
*
*
* @param $SearchPattern    查找的条件(like)
* @param $BaseNum 节点的层数
*/

           function ListChildTree($SearchPattern,$BaseNum){
               global $Tree;//声明连接数据库的句柄为全局
               $Sql="select DepartmentId,DepartmentName from test where DepartmentId like '$SearchPattern'";    //查找孩子节点
               $QueryChild=$Tree->query($Sql);          
               while($Result=$Tree->fetch_array($QueryChild)) { //取出孩子节点
                   $Space="";
                    for($j=0;$j                      $Space.="  ";                 //设置显示节点前面的距离,这里的空格的html被这里自动替换成"  "了
                   $ChildDepartment=trim($Result[0])."___";            
                   $ChildSql="select count(*) from test where DepartmentId like '$ChildDepartment'";//查找孩子节点的孩子节点
                   $ChildResult=$Tree->query_first($ChildSql);             
                   $TableId="ta".trim($Result[0]); //设置表格Id
                   $TablePic="ta".trim($Result[0])."pic";    //设置图片Id                   
                   if($ChildResult[0]                      ?>
                    

=$Space?>无限级别菜单的实现(其实还是有限级别的^0^)=$Result[1]?>
                    
                
                 }else{           //找到则显示"+"图片            
                  ?>
                   
=$Space?>无限级别菜单的实现(其实还是有限级别的^0^)=$Result[1]?>
                  
            
              ListChildTree($ChildDepartment,$BaseNum);//递归调用函数本身来显示其他孩子节点
            }//end if?>
             

            }//end while
           }//end function?>


无限级菜单测试


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