CI框架(CodeIgniter)实现的导入、导出数据操作示例

public function excel_put(){
  //先做一个文件上传，保存文件
  $path=$_files['file'];
  $filepath = "uploads/".$path["name"];
  move_uploaded_file($path["tmp_name"],$filepath);
  //$data=array('b'=>'name','c'=>'pwd','d'=>'money1','e'=>'salt');
  $data=array('b'=>'name','c'=>'pid');
  $tablename='city2';//表名字
  $this->excel_fileput($filepath,$data,$tablename);
}

private function excel_fileput($filepath,$data,$tablename){
  $this->load->library("phpexcel");//ci框架中引入excel类
  $phpexcel = new phpexcel();
  $phpreader = new phpexcel_reader_excel2007();
  if(!$phpreader->canread($filepath)){
    $phpreader = new phpexcel_reader_excel5();
    if(!$phpreader->canread($filepath)){
      echo 'no excel';
      return ;
    }
  }
  // 加载excel文件
  $phpexcel = $phpreader->load($filepath);
  // 读取excel文件中的第一个工作表
  $currentsheet = $phpexcel->getsheet(0);
  // 取得最大的列号
  $allcolumn = $currentsheet->gethighestcolumn();
  // 取得一共有多少行
  $allrow = $currentsheet->gethighestrow();
  // 从第二行开始输出，因为excel表中第一行为列名
  for($currentrow = 2;$currentrow <= $allrow;$currentrow++){
    /**从第a列开始输出*/
    //echo $allcolumn;
    for($currentcolumn= 'a';$currentcolumn<= $allcolumn; $currentcolumn++){
      $val = $currentsheet->getcellbycolumnandrow(ord($currentcolumn) - 65,$currentrow)->getvalue();
      //print_r($val);
      //die;
      if($currentcolumn == 'a')
      {
        //echo $val."t";
      }else if($currentcolumn <= $allcolumn){
        $data1[$currentcolumn]=$val;
      }
    }
    foreach($data as $key=>$val){
      $data2[$val]=$data1[$key];
    }
    $this->db->insert($tablename,$data2);
    //print_r($data2);
    //echo "</br>";
  }
  //echo "n";
  echo "导入成功";
}

public function excel_out(){
  header("content-type:text/html");
  header("content-disposition:attachment;filename=123.xls");
  $array=$this->db->get("city")->result_array();
  $str="idt"."namet"."pidn";
  foreach($array as $val){
    $str.=$val['id']."t".$val['name']."t".$val['pid']."n";
  }
  echo $str;
}