// 上一篇下一篇(同一个分类下,先确定该分类的pid) public function frontAfter() { $param=$this->param; $front=Db::name('news')->where(['pid'=>$param['pid']])->where('id','<',$param['id'])->field(['id','pid'])->order(['id'=>'desc'])->find(); $after=Db::name('news')->where(['pid'=>$param['pid']])->where('id','>',$param['id'])->field(['id','pid'])->order(['id'=>'asc'])->find(); $front=empty($front)?'没有了':$front; $after=empty($after)?'没有了':$after; $data=[$front,$after]; return resultArray(['data'=>$data]); }
测试代码php部分：
public function fenye() { $param=$this->param; // dump($param); $front=Db::name('news')->where(['pid'=>$param['pid']])->where('id','<',$param['id'])->order(['id'=>'desc'])->find(); $after=Db::name('news')->where(['pid'=>$param['pid']])->where('id','>',$param['id'])->order(['id'=>'asc'])->find(); // echo Db::name('news')->getLastSql(); // dump($front); // dump($after); $f_url= $front['id']; $a_url=$after['id']; $front=empty($front)?'没有了':$front; $after=empty($after)?'没有了':$after; $this->assign('front',$front); $this->assign('after',$after); $this->assign('f_url',$f_url); $this->assign('a_url',$a_url); return $this->fetch('index'); }
HTML部分：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>news 分页</title>
</head>
<body>
<div>分页</div>
{$front} --{$after}<br>
<a href="{$f_url}">上一页</a> <a href="{$a_url}">下一页</a>
</body>
</html>