分享一个调用广告位的代码（函数或Widget类）
- WBOY原創
- 2016-06-07 11:44:211006瀏覽
自己写的一个调用广告位的函数和Widget类
首先是函数：缓存，自定义广告位模板。<?php <br />
function Ad($id=0){<br>
if(intval($id)){<br>
$ad = S("ad_".$id);<br>
if(empty($ad)){<br>
$ad = '';<br>
$adinfo = M('adplace')->find($id);<br>
if(!$adinfo || $adinfo['status']==0){<br>
return '广告位已经关闭';<br>
}else{<br>
import(Think.Core.View);<br>
$view = new View;<br>
$template = APP_PATH."Tpl/Home/Ad/".($adinfo['tpl']?$adinfo['tpl']:'index').".html";<br>
if(!is_file($template)){return '模板路径错误';}<br>
$to = APP_PATH.'Runtime/Cache/'.GROUP_NAME.'/'.md5($template).'.php';<br>
$width = $adinfo['adwidth'];<br>
$height = $adinfo['adheight'];<br>
$typeid = $adinfo['typeid'];<br>
switch($adinfo['typeid']){<br>
case 1:<br>
$adlist = M('ad')->where(array('pid'=>$adinfo['id'],'status'=>1))->order('sort asc,id desc')->select();<br>
foreach($adlist as $t){<br>
$v['title'] = $t['title'];<br>
$v['thumb'] = $t['ad_file'];<br>
$v['linkurl'] = $t['ad_url'] ? $t['ad_url'] : $t['url'];<br>
$tags[] = $v;<br>
}<br>
if($tags){<br>
$view->display($template);<br>
if(!is_file($to)){return '配置错误';}<br>
ob_start();<br>
include $to;<br>
$ad = ob_get_contents();<br>
ob_clean();<br>
}<br>
break;<br>
case 2:<br>
$adlist = M('ad')->where(array('pid'=>$adinfo['id'],'status'=>1))->order('sort asc,id desc')->select();<br>
foreach($adlist as $t){<br>
$v['title'] = $t['title'];<br>
$v['thumb'] = $t['ad_file'];<br>
$v['linkurl'] = $t['ad_url'] ? $t['ad_url'] : $t['url'];<br>
$tags[] = $v;<br>
}<br>
if($tags){<br>
$view->display($template);<br>
if(!is_file($to)){return '配置错误';}<br>
ob_start();<br>
include $to;<br>
$ad = ob_get_contents();<br>
ob_clean();<br>
}<br>
break;<br>
case 3:<br>
$adlist = M('ad')->where(array('pid'=>$adinfo['id'],'status'=>1))->order('sort asc,id desc')->find();<br>
if($adlist){<br>
$view->display($template);<br>
if(!is_file($to)){return '配置错误';}<br>
ob_start();<br>
include $to;<br>
$ad = ob_get_contents();<br>
ob_clean();<br>
}<br>
break;<br>
}<br>
//生成缓存<br>
S("ad_".$id,$ad);<br>
}<br>
}<br>
return $ad;<br>
}else{<br>
return '没有广告位';<br>
}<br>
}<br>
?>下面这个是用Widget类，好像用不了缓存，其实是不会写，脑子不会转弯了。<?php <br />
class AdWidget extends Action{<br>
public function show($id=0){<br>
if($id){<br>
$adinfo = M('adplace')->find($id);<br>
if(!$adinfo || $adinfo['status']==0){<br>
echo '';<br>
}else{<br>
$this -> assign('id' , $id);<br>
$this -> assign('width' , $adinfo['adwidth']);<br>
$this -> assign('height' , $adinfo['adheight']);<br>
$typeid = $adinfo['typeid'];<br>
$this -> assign('typeid' , $typeid);<br>
switch($adinfo['typeid']){<br>
case 1:<br>
$adlist = M('ad')->where(array('pid'=>$adinfo['id'],'status'=>1))->order('sort asc,id desc')->select();<br>
foreach($adlist as $t){<br>
$v['title'] = $t['title'];<br>
$v['thumb'] = $t['ad_file'];<br>
$v['linkurl'] = $t['ad_url'] ? $t['ad_url'] : $t['url'];<br>
$tags[] = $v;<br>
}<br>
if($tags){<br>
$this->assign('tags',$tags);<br>
$this->display("Ad:index");<br>
}<br>
break;<br>
case 2:<br>
$adlist = M('ad')->where(array('pid'=>$adinfo['id'],'status'=>1))->order('sort asc,id desc')->select();<br>
foreach($adlist as $t){<br>
$v['title'] = $t['title'];<br>
$v['thumb'] = $t['ad_file'];<br>
$v['linkurl'] = $t['ad_url'] ? $t['ad_url'] : $t['url'];<br>
$tags[] = $v;<br>
}<br>
if($tags){<br>
$this->assign('tags',$tags);<br>
$this->display("Ad:index");<br>
}<br>
break;<br>
case 3:<br>
$adlist = M('ad')->where(array('pid'=>$adinfo['id'],'status'=>1))->order('sort asc,id desc')->find();<br>
if($adlist){<br>
$this->assign('adlist',$adlist);<br>
$this->display('Ad:index');<br>
}<br>
break;<br>
}<br>
}<br>
}else{<br>
echo '';<br>
}<br>
}<br>
}<br>
?>调用方法：{:Ad(3)}<br>
<hr>
<br>
{:R('Ad/show',array('id'=>3),'Widget')}我个人喜欢那个Ad($id)函数，调用方便，还能缓存。不知道效率上哪个好一点。对Widget类，不是太明白，刚刚看了资料临时写的。
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