本文以实例描述了ThinkPHP采用标签实现三级循环代码，具体操作步骤如下：
1. 三级循环需要三维数组，实现代码如下：
function MakeTree($pid,$level) { $map['pid'] = $pid; $map['level'] = $level; $result = $this->where($map)->order('rank ASC')->findall(); if($result){ foreach ($result as $key => $value){ $title = $value['alias']; $list[$title]['id'] = $value['id']; $list[$title]['pid'] = $value['pid']; $list[$title]['alias']= $value['alias']; $list[$title]['title'] = $value['title']; $list[$title]['level'] = $value['level']; $list[$title]['state'] = $value['state']; $list[$title]['rank'] = $value['rank']; if($value['level']_MakeSonTree($value['id']); } } } return $list; } function _MakeSonTree($pid) { $map['pid'] = $pid; $result = $this->where($map)->order('rank ASC')->findall(); if($result){ foreach ($result as $key => $value){ $title = $value['alias']; $list[$title]['id']= $value['id']; $list[$title]['pid']= $value['pid']; $list[$title]['alias']= $value['alias']; $list[$title]['title'] = $value['title']; $list[$title]['level'] = $value['level']; $list[$title]['state'] = $value['state']; $list[$title]['rank'] = $value['rank']; if($this->haschild($value['id'])){ //先判断是否有第三级子类,最后的数组形如$result['child']['gran<div style="color:transparent">！本文来源gaodai.ma#com搞##代!^码网(</div><sup>搞gaodaima代码</sup>dchild']; $list[$title]['grandchild']=$this->_MakeSonTree($value['id']); } } } return $list; } function haschild($id){ $result=D('LearningChannel')->where("pid=".$id)->find(); if($result){ return true; } else return false; }
2.绑定volist标签：
$result=D('Learning') ->MakeTree(0,1); //dump($result); $this->assign('list',$result);
3.模板部分：
<option name="cid" value="{$vo.id}" selected >{$vo.alias} <option name="cid" value="{$child.id}" selected >--{$child.alias} <option name="cid" value="{$grand.id}" selected >---{$grand.alias}
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转载请注明原文链接：ThinkPHP采用<volist>实现三级循环代码实例_PHP
转载请注明原文链接：ThinkPHP采用<volist>实现三级循环代码实例_PHP
