thinkphp条件查询和模糊查询的一些方法

 #文章管理
     public function adminArticle(){
         $adminArticle=M("article");
         $arr_seach=$this->seach($adminArticle,10,"篇文章","now desc","");//参数格式seach($db,$num,$page_header,$order,$where)
         ##按最早排序
         if(!@empty($_POST['time'])){
             $arr_seach=$this->seach($adminArticle,10,"篇文章","now asc","");
         }
         ##按作者查询
         if(!@empty($_POST['author'])){
             $arr_seach=$this->seach($adminArticle,10,"篇文章","now desc","author='{$_POST['author']}'");
         }
         ##按标签查询
         if(!@empty($_POST['classify'])){
             $arr_seach=$this->seach($adminArticle,10,"篇文章","now desc","classify='{$_POST['classify']}'");
         }
         ##模糊查询
         if(!@empty($_POST['seach'])){
             $map['title'] =array('like',"%{$_POST['seach']}%",'or');
             $arr_seach=$this->seach($adminArticle,10,"篇文章","now desc",$map);
         }
         ##输出到view
         $selectArticle=$arr_seach['selectArticle'];
         $show=$arr_seach['show'];
         $arr_index=array(
             "selectArticle"=>$selectArticle,
             "page"=>$show
             );
         $this->assign($arr_index);
         $this->display();
     }
     ##一个查询方法
     public function seach($db,$num,$page_header,$order,$where){
         $count = $db->where($where)->count();//
         $Page       = new \Think\Page($count,$num);// 实例化分页类 传入总记录数和每页显示的记录数(25)
         if($page_header==false){
             $Page->setConfig("header","");
         }else{
             $Page->setConfig("header","<span class='rows'>共 %TOTAL_ROW% ".$page_header."</span>");
         }
         $show       = $Page->show();// 分页显示输出

         $selectArticle=$db->order($order)->where($where)->limit($Page->firstRow.','.$Page->listRows)->select();

         return $arr_page = array(
         "show"=>$show,
         "Page"=>$Page,
         "selectArticle"=>$selectArticle,
         );
     }