您好,登錄后才能下訂單哦!
本篇文章給大家分享的是有關(guān)如何在ThinkPHP項(xiàng)目中利用<volist>實(shí)現(xiàn)一個(gè)三級(jí)循環(huán),小編覺得挺實(shí)用的,因此分享給大家學(xué)習(xí),希望大家閱讀完這篇文章后可以有所收獲,話不多說,跟著小編一起來看看吧。
1. 三級(jí)循環(huán)需要三維數(shù)組,實(shí)現(xiàn)代碼如下:
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']<=3){ $list[$title]['child'] = $this->_MakeSonTree($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($value['id'])){ //先判斷是否有第三級(jí)子類,最后的數(shù)組形如$result['child']['grandchild']; $list[$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.綁定volist標(biāo)簽:
$result=D('Learning') ->MakeTree(0,1); //dump($result); $this->assign('list',$result);
3.模板部分:
<select name="category" id="select" class="text mr5"> <volist name="list" id="vo"> <option name="cid" value="{$vo.id}" <eq name="vo.id" value="getid">selected</eq> >{$vo.alias}</option> <volist name="vo['child']" id="child"> <option name="cid" value="{$child.id}" <eq name="child.id" value="getid">selected</eq> >--{$child.alias}</option> <volist name="child['grandchild']" id="grand"> <option name="cid" value="{$grand.id}" <eq name="grand.id" value="getid">selected</eq> >---{$grand.alias}</option> </volist> </volist> </volist> </select>
以上就是如何在ThinkPHP項(xiàng)目中利用<volist>實(shí)現(xiàn)一個(gè)三級(jí)循環(huán),小編相信有部分知識(shí)點(diǎn)可能是我們?nèi)粘9ぷ鲿?huì)見到或用到的。希望你能通過這篇文章學(xué)到更多知識(shí)。更多詳情敬請(qǐng)關(guān)注億速云行業(yè)資訊頻道。
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點(diǎn)不代表本網(wǎng)站立場,如果涉及侵權(quán)請(qǐng)聯(lián)系站長郵箱:is@yisu.com進(jìn)行舉報(bào),并提供相關(guān)證據(jù),一經(jīng)查實(shí),將立刻刪除涉嫌侵權(quán)內(nèi)容。