将图像从ios上传到Web服务器到PHP - Upload image to webserver from ios to PHP

我有一个应用程序，我正在将一些数据上传到web服务器。

这是我从谷歌的链接中得到的代码。

UIImage * img = [UIImage imageNamed:@"register_btn.png"];
    NSData *imageData = UIImageJPEGRepresentation(img, 90);
    NSString *urlString = @"http://tes.in/testservices/User.php";
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:[NSURL URLWithString:urlString]];
    [request setHTTPMethod:@"POST"];
    NSString *boundary = @"------------------------1473780983146499882746641449";
    NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
    [request addValue:contentType forHTTPHeaderField:@"Content-Type"];
    NSMutableData *body = [NSMutableData data];
    [body appendData:[[NSString stringWithFormat:@"'r'n--%@r'n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data;filename='a.jpg'"'r'n"] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithFormat:@"Content-Type: application/json'r'n'r'n"]dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[NSData dataWithData:imageData]];
    [body appendData:[[NSString stringWithFormat:@"'r'n--%@--'r'n",boundary]dataUsingEncoding:NSUTF8StringEncoding]];
    [request setHTTPBody:body];
    NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
    NSString *returnString =[[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
        //profile_photo_link
    NSLog(@"%@",returnString);

但我没有得到代码中需要传递的内容。

我上传照片的参数是"photo_link"。我已经给出了php Web服务的链接。

我知道这方面有很多问题，但我不知道把参数传递到哪里，也不知道如何检查请求字符串。

如果可能的话，请任何人给我PHP解码图像的代码。

请帮帮我。

提前谢谢。

试试这个代码：

-(void)uploadImageOnServer:(NSData *)imageData forId:(NSString *)imageId
{            
    NSURL *strURL = @"http://webserver.com/....";//give your URL here
    // setting up the request object now
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
    [request setURL:strURL];
    [request setHTTPMethod:@"POST"];
    NSString *boundary = @"---------------------------147378098314876653456641449";
    NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
    [request addValue:contentType forHTTPHeaderField: @"Content-Type"];
    /*
     now lets create the body of the post
     */
    NSMutableData *body = [NSMutableData data];
    [body appendData:[[NSString stringWithFormat:@"'r'n--%@'r'n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    NSString *stringData = [NSString stringWithFormat:@"Content-Disposition: form-data; name='"Documents'"; filename='%@.jpg'r'n",imageId];
    [body appendData: [stringData dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[@"Content-Type: application/octet-stream'r'n'r'n" dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[NSData dataWithData:imageData]];
    [body appendData:[[NSString stringWithFormat:@"'r'n--%@--'r'n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    // setting the body of the post to the request
    [request setHTTPBody:body];
    // now lets make the connection to the web
    NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];

    NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
    NSLog(@"%@",returnString);
}

"Documents"是要将图像保存到后端服务器的文件夹名称。

祝你好运！