顶级奉献 – 可视化无限极菜单或结构创建（原创100%）

目前互联网充斥着各式各样的创建菜单的功能，有些是限制级菜单，有些是需要繁琐的填写排列序号等，或有些没能可视化地清晰表现出整个菜单的布局或外观，2011年科技日新月异的时代，难道我们怎么还能被这些困扰着落后着！就让我们开始吧。。。

正好公司在开发项目的之际，为了能给使用者提供更方便的操作，所以开发了一个可视化无限极菜单，由于本项目是基于CodeIgniter 1.7 的MVC的框架开发，并项目属于公司内部机密，没有案例展示给大家看，仅此把几个递归算法和大家分享，另外附上 菜单使用到的 css/html/Javascritp.

//======用于构建菜单的三个递归算法函数===CopyRight Terry 2011-05-25============================================
//创建多维菜单数组
function _CreateMenuArray($rdarray = array(),$keynum = 0)
{
$newarray = array();
if(is_array($rdarray))
{
foreach($rdarray as $key => $value)
{
$num = substr_count($value['level'],'-')-2;
if($num!=0)
{
$newarray_temp = $this->_SearchArray($newarray,$value);
if($this->_arraydif == 1)
{
$newarray = $newarray_temp;
}
else
{
//********额外********
if($value['type']==0)
{
$mtype = $this->lang->line('article_type_type_list');
}
else
{
$mtype = $this->lang->line('article_type_type_page');
}
if($value['tomenu']==0)
{
$minm = $this->lang->line('noinf');
}
else
{
$minm = $this->lang->line('haveinf');
}
//*************************
$newarray[$keynum] = array(
'id' => $value['id'],
'name' => $value['name'],
'level' => $value['level'],
'type' => $mtype,
'tomenu' => $minm
);
$keynum+=1;
}
}
else
{
//********额外********
if($value['type']==0)
{
$mtype = $this->lang->line('article_type_type_list');
}
else
{
$mtype = $this->lang->line('article_type_type_page');
}
if($value['tomenu']==0)
{
$minm = $this->lang->line('noinf');
}
else
{
$minm = $this->lang->line('haveinf');
}
//*************************
$newarray[$keynum] = array(
'id' => $value['id'],
'name' => $value['name'],
'level' => $value['level'],
'type' => $mtype,
'tomenu' => $minm
);
$keynum+=1;
}
$this->_arraydif = 0;
}
}
return $newarray;
}

//遍历已生成的菜单数组
function _SearchArray($sarray = array(),$addarray = array())
{
if(is_array($sarray))
{
$find = 0;
foreach($sarray as $skey => $svalue)
{
if(is_array($svalue))
{
if(
@stripos($addarray['level'],$svalue['level'])===0
&&
substr_count($addarray['level'],'-')===(substr_count($svalue['level'],'-')+1)
)
{
//********额外********
if($addarray['type']==0)
{
$mtype = $this->lang->line('article_type_type_list');
}
else
{
$mtype = $this->lang->line('article_type_type_page');
}
if($addarray['tomenu']==0)
{
$minm = $this->lang->line('noinf');
}
else
{
$minm = $this->lang->line('haveinf');
}
$addarray['type'] = $mtype;
$addarray['tomenu'] = $minm;
//*************************

$svalue[‘children’][]= $addarray;
$sarray[$skey] = $svalue;
$find = 1;
$this->_arraydif = $find;
}
if($find==0)
{
if(is_array($svalue))
$sarray[$skey] = $this->_SearchArray($svalue,$addarray);
}
}
}
}
return $sarray;
}

//生成HTML菜单结构
function _CreateMenuHTML($menuarray = array(),$menustr = ”)
{
if(is_array($menuarray))
{
foreach($menuarray as $key => $value)
{
if(is_array($value) && count($value)==6)
{
$menustr.=’

‘;
}
else
{
$menustr.=’

‘;
}
}
$menustr = ‘

‘.$menustr.’

‘;
}
else
{
$menustr = ”;
}
return $menustr;
}
//===========================================================================================

//保存文章类型的菜单结构
function sys_articletype_savemenu()
{
if($_POST['menustr']!='')
{
$menulist = array();
$menu = explode('##',$_POST['menustr']);
$fid = 0;
$levelnum = 0;
$levelstr = '';
foreach($menu as $key=>$val)
{
$id = substr($val,stripos($val,'=')+1,strlen($val));
$level = substr_count($val,'children');
if($level>$levelnum)
{
$menulist[$key]=array(
'id' => $id,
'level' => $levelstr.$key.'-'
);
$levelnum = $level;
$levelstr = $levelstr.$key.'-';
}
elseif($levelnum!=0 && $level==$levelnum)
{
$leveltemp = substr($levelstr,1,strlen($levelstr)-2);
$leveltemp = '-'.substr($leveltemp,0,strripos($leveltemp,'-')+1);
$menulist[$key]=array(
'id' => $id,
'level' => $leveltemp.$key.'-'
);
$levelnum = $level;
$levelstr = $leveltemp.$key.'-';
}
else
{
$levelnum = $level;
if($level == 0)
{
$fid = $key;
}
$levelstr = '';
for($i=$fid;$i<$levelnum+$fid;$i++) { $levelstr.='-'.$i; } $levelstr.='-'.$key.'-'; $menulist[$key]=array( 'id' => $id,
'level' => $levelstr
);
}
}
//print_r($menulist);exit;
//SQL事务处理
mysql_query('START TRANSACTION') or exit(mysql_error());
foreach($menulist as $key => $val)
{
mysql_query(
'UPDATE '.
$this->session->userdata('DP').'articles_type
SET
level = "'.$val['level'].'",
sortid = '.$key.'
WHERE id='.$val['id']);
}
mysql_query('COMMIT') or exit(mysql_error());//执行事务
}
}