PHP实现CSV文件的导入和导出类

csv_array = $param_arr; $this->path = $path; $this->column = $column; } /** * 导出 * */ public function export(){ if(empty($this->csv_array) || empty($this->column)){ return false; } $param_arr = $this->csv_array; unset($this->csv_array); $export_str = implode(',',$param_arr['nav'])."n"; unset($param_arr['nav']); //组装数据 foreach($param_arr as $k=>$v){ foreach($v as $k1=>$v1){ $export_str .= implode(',$v1)."n"; } } //将$export_str导出 header( "Cache-Control: public" ); header( "Pragma: public" ); header("Content-type:application/vnd.ms-excel"); header("Content-Disposition:attachment;filename=txxx.csv"); header('Content-Type:APPLICATION/OCTET-STREAM'); ob_start(); // $file_str= iconv("utf-8",'gbk',$export_str); ob_end_clean(); echo $export_str; } /** * 导入 * */ public function import($path,$column = 3){ $flag = flase; $code = 0; $msg = '未处理'; $filesize = 1; //1MB $maxsize = $filesize * 1024 * 1024; $max_column = 1000;

//检测文件是否存在
if($flag === flase){
  if(!file_exists($path)){
    $msg = '文件不存在';
    $flag = true;
  }
}
//检测文件格式
if($flag === flase){
  $ext = preg_replace("/.*.([^.]+)/","$1",$path);
  if($ext != 'csv'){
    $msg = '只能导入CSV格式文件';
    $flag = true;
  }
}
//检测文件大小
if($flag === flase){
  if(filesize($path)>$maxsize){
    $msg = '导入的文件不得超过'.$maxsize.'B文件';
    $flag = true;
  }
}
//读取文件
if($flag == flase){
  $row = 0;
  $handle = fopen($path,'r');
  $dataArray = array();
  while($data = fgetcsv($handle,$max_column,",")){
    $num = count($data);
    if($num < $column){
      $msg = '文件不符合规格真实有：'.$num.'列数据';
      $flag = true;
      break;
    }
    if($flag === flase){
      for($i=0;$i<3;$i++){
        if($row == 0){
          break;
        }
        //组建数据
        $dataArray[$row][$i] = $data[$i];
      }
    }
    $row++;
  }
}
return $dataArray;

}
}
$param_arr = array(
'nav'=>array('用户名','密码','邮箱'),array(0=>array('xiaohai1','123456','xiaohai1@zhongsou.com'),1=>array('xiaohai2','213456','xiaohai2@zhongsou.com'),2=>array('xiaohai3','xiaohai3@zhongsou.com')
));
$column = 3;
$csv = new Csv($param_arr,$column);
//$csv->export();
$path = 'C:Documents and SettingsAdministratorTemptxxx.csv';
$import_arr = $csv->import($path,3);
var_dump($import_arr);
?>