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无限级别菜单的实现_PHP

Jun 01, 2016 pm 12:28 PM
accomplish unlimited level node menu

/* 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] ?>

=$Space?>无限级别菜单的实现_PHP=$Result[1]?>


}else{ //找到则显示" "图片
?>
=$Space?>无限级别菜单的实现_PHP=$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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