PHP操控Excel（二）

读取数据库数据并输成excel

db.php

<?php
/**
 * Created by PhpStorm.
 * User: 清风徐来
 * Date: 2018/5/12
 * Time: 15:49
 */
require dirname(__FILE__)."./dbconfig.php";//引入配置文件

   class db{
       public $conn=null;

       public function __construct($config)
       {
           $this->conn = mysql_connect($config['host'], $config['username'], $config['password']) or die(mysql_error());//连接数据库
           mysql_select_db($config['database'], $this->conn) or die(mysql_error());
           mysql_query("set names " . $config['charset']) or die(mysql_error());
       }
           /*
            * 根据传入sql语句  查询mysql结果集
            * */
       public function getResult($sql){
           $resource=mysql_query($sql,$this->conn) or die(mysql_error());
           $res=array();
           while (($row=mysql_fetch_assoc($resource))!=false){
               $res[]=$row;
           }
           return $res;
       }
       /*
        *
        **/
       public function getData(){
           $sql="select id,username,password from cl_user";
           $res=self::getResult($sql);
           return $res;
       }
//           $this->conn=mysqli_connect($config['host'],$config['username'],$config['password']),$config['database'];
//           mysqli_query("set names ".$config['charset']);


   }

export.php

<?php
/**
 * Created by PhpStorm.
 * User: 清风徐来
 * Date: 2018/5/12
 * Time: 16:06
 */
  $dir=dirname(__FILE__); //查找当前脚本所在路径
  require $dir."/db.php";//引入mysql操作类文件
  require $dir."/PHPExcel/PHPExcel.php";//引入PHPExcel
  $db=new db($phpexcel); //实例化db类 连接数据库
  $objPHPExcel = new PHPExcel();//实例化PHPExcel类，
  for($i=1;$i<=100;$i++){
      if ($i>1){
          $objPHPExcel->createSheet();//创建新的内置表
      }
      $objPHPExcel->setActiveSheetIndex($i-1); //把新
      $objSheet=$objPHPExcel->getActiveSheet();//获取当前活动sheet
      $objSheet->setTitle('数据'); //給sheet 标题命名

      $data=$db->getData();
      $objSheet->setCellValue("A1","id")->setCellValue("B1","分数")->setCellValue("C1","班级");//设定标题
      $j=2;
      foreach ($data as $key=>$val){
          //填充数据
          $objSheet->setCellValue("A".$j,$val['id'])->setCellValue("B".$j,$val['username'])->setCellValue("C".$j,$val['password']);
          $j++;
      }
      $objWriter=PHPExcel_IOFactory::createWriter($objPHPExcel,'Excel5');  //设定输出文件格式
      $objWriter->save($dir."/export_1.xls");                             //保存目录
  }

?>