小编Nil*_*jan的帖子

我写了一个简单的函数来删除数据库中的数据,但删除查询不正确我的模型代码如下:

function removedata()
{
    $userid = $this->input->post('userid');
    $this->db->where('userid', $userid);
    $deldata = $this->db->delete('userbasic');
    if ($deldata == true) {
        echo "Data Removed Successfully";
    } else {
        echo "Deletion Failed";
    }
}

我已经加载了数据库,并尝试了两个查询即

 $this->db->where('userid',$userid);
  $deldata=$this->db->delete('userbasic');

和

$deldata=$this->db->delete('userbasic',array('userid'=>$userid));

所以请建议我回答结果没有错误它也打印成功删除数据,但数据没有从数据库中删除...

我想在单个服务请求中上传多个图像.我怎样才能做到这一点.截至目前,我可以像上传一样上传单张图片

 NSData *imageData = UIImageJPEGRepresentation(image, 90);


 NSString *boundary = @"---------------------------14737809831466499882746641449";


   NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];

NSMutableData *postBody = [NSMutableData data];

// file
[postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[[NSString stringWithString:[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"files\"; filename=\”%@\”\r\n”,@“imagename”]] dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[NSData dataWithData:imageData]];
[postBody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];


[postBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];

现在我想将两个图像上传到服务器,我该怎么做.