删除函数重复问题

Application/Admin/Common/extend.php

@@ -1713,29 +1713,6 @@ function getOffspringByPromoteId($promote_id) {
         ->find();
     return $promote_ids['promote_ids'];
 }
-
-
-//导出csv 2019/12/20
-function db2csv(&$data,$title,$header=false){
-    set_time_limit(0);
-    $filename = $title .'.csv';
-    $fp = fopen($filename, 'w'); //生成临时文件
-    fwrite($fp, chr(0xEF).chr(0xBB).chr(0xBF));//转码,防止乱码
-    if($header) fputcsv($fp, $header);
-    
-    foreach ($data as $a) {
-       fputcsv($fp, $a);
-    }
-    fclose($fp);  //每生成一个文件关闭
-    //下载
-    header('Content-Type: application/vnd.ms-excel;charset=utf-8');
-    header('Content-Disposition: attachment;filename="' . $title . '.csv"');
-    header('Cache-Control: max-age=0');
-    header('Content-Length: ' . filesize($filename));
-    readfile($filename);
-    unlink($filename);
-    die();
-}
 //导出csv 新增字段排序功能
 function data2csv(&$data,$title,$fields){
     set_time_limit(0);