laravel用源码导出excel 一分钟解决

 public function excelport()
  {
    $stu = User::select('id','name','email','password')->get()->toArray();
    
    $this->exportExcel($stu,array('id','用户名','邮箱','密码'),'用户表');
  }
 /**
     * 导出数据为excel表格
     *@param $data    一个二维数组,结构如同从数据库查出来的数组
     *@param $title   excel的第一行标题,一个数组,如果为空则没有标题
     *@param $filename 下载的文件名
     *@examlpe
     $stu = M ('User');
     $arr = $stu -> select();
     exportexcel($arr,array('id','账户','密码','昵称'),'文件名!');
 */

   public static function exportExcel($data=[],$title=[],$filename='报表'){//导出excel表格
        //处理中文文件名
        ob_end_clean();
        Header('content-Type:application/vnd.ms-excel;charset=utf-8');
        header("Content-Disposition:attachment;filename=export_data.xls");
        //处理中文文件名
        $ua = $_SERVER["HTTP_USER_AGENT"];
        $encoded_filename = urlencode($filename);
        $encoded_filename = str_replace("+", "%20", $encoded_filename);
        if (preg_match("/MSIE/", $ua) || preg_match("/LCTE/", $ua) || $ua == 'Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko') {
            header('Content-Disposition: attachment; filename="' . $encoded_filename . '.xls"');
        }else {
            header('Content-Disposition: attachment; filename="' . $filename . '.xls"');
        }
        header ( "Content-type:application/vnd.ms-excel" );
        $html = "
            
            
            
            ".$filename."
            
            td{
                text-align:center;
                font-size:12px;
                font-family:Arial, Helvetica, sans-serif;
                border:#1C7A80 1px solid;
                color:#152122;
                width:auto;
            }
            table,tr{
                border-style:none;
            }
            .title{
                background:#7DDCF0;
                color:#FFFFFF;
                font-weight:bold;
            }
            
            
            
            
              ";
        foreach($title as $k=>$v){
            $html .= " ".$v."";
        }
        $html .= "";
        foreach ($data as $key => $value) {
            $html .= "";
            foreach($value as $aa){
                $html .= "".$aa."";
            }
            $html .= "";
        }
        $html .= "";
        echo $html;
        exit;
    }