iOS JSON POST 不被 PHP 接受

不幸的是，我已经在寻找修复程序（或原因）7个小时了，终于承认我需要一些帮助。

我刚刚开始为 ios 重写我的应用程序（从 android），我被困在 ios 中的 json。

我的 JSON 发布操作;

      NSString *post = [[NSString alloc] initWithFormat:@"{'firstname':'%@' 'surname':'%@'      'yob':'%@' 'gender':'%@' 'hometown':'%@' 'phone':'%@' 'email':'%@' 'deviceid':'%@' 'regId':'%@'  'phonetype':'%@'}",[_FirstName text],[_Surname text],[_YOB text],[_Gender text],[_HomeTown text], [_PhoneNO text],[_Email text],[_deviceid text],[_regID text],[_phonetype text]];
  NSLog(@"PostData: %@",post);
  NSURL *url=[NSURL URLWithString:@"***"];
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding];
    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:url];
    [request setHTTPMethod:@"POST"];
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
    [request setValue:@"appplication/www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    [request setHTTPBody:postData];
    NSError *error = [[NSError alloc] init];
    NSHTTPURLResponse *response = nil;
    NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
    NSLog(@"Response code:%d", [response statusCode]);
    if ([response statusCode] >=200 && [response statusCode] <300)
    {
        NSString *responseData = [[NSString alloc] initWithData:urlData encoding:NSUTF8StringEncoding];
        NSLog(@"Respinse ==> %@", responseData);
        SBJsonParser *jsonParser = [SBJsonParser new];
        NSDictionary *jsonData = (NSDictionary *) [jsonParser objectWithString:responseData error:nil];
        NSLog(@"%@",jsonData);
        NSInteger sucess = [(NSNumber *) [jsonData objectForKey:@"sucess"] integerValue];
        NSLog(@"%d",sucess);
        if (sucess==1)
        {
            NSLog(@"Signed up");
        }else {
            NSString *error_msg = (NSString *) [jsonData objectForKey:@"error_message@"];
       }
    }else {
       if (error) NSLog(@"Error: %@", error);
    }
}

和我的PHP;

<?php

 include_once("../php/sign_up/connect_db.php");
// array for JSON response
$response = array();
// check for required fields/
if (!empty($_POST['firstname']) && !empty($_POST['surname']) && !empty($_POST['email']) &&     !empty($_POST['phone']) && !empty($_POST['hometown']) && !empty($_POST['deviceid']) && !empty($_POST['yob']) && !empty($_POST['regId']) && !empty($_POST['gender'])) {
$firstname = $_POST['firstname'];
$surname = $_POST['surname'];
$email = $_POST['email'];
$phone = $_POST['phone'];
$hometown = $_POST['hometown'];
$deviceid = $_POST['deviceid'];
$phonetype = $_POST['phonetype'];
$yob = $_POST['yob'];
$regId = $_POST['regId'];
$gender = $_POST['gender'];
// include db connect class
//require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
   $result = mysql_query("SELECT *FROM User_signup WHERE (email = '".$email."')" ) or die(mysql_error());
 $existingemails = mysql_num_rows($result);
 if ($existingemails > 0) {
 $response["success"] = 0;
 $response["message"] = "Email address already exists";
 //echoing JSON response
 echo json_encode($response);
} 
else {

// mysql inserting a new row
$result = mysql_query("INSERT INTO User_signup(firstname, surname, email, phone, hometown, id, type, Yob, regid, gender) VALUES('$firstname', '$surname', '$email', '$phone', '$hometown', '$deviceid', '$phonetype', '$yob', '$regId', '$gender')");
// check if row inserted or not
if ($result) {
    // successfully inserted into database
    $response["success"] = 1;
    $response["message"] = "Thank you for signing up!";
    // echoing JSON response
    echo json_encode($response);
} else {
    // failed to insert row
    $response["success"] = 0;
    $response["message"] = "An Error has occurred, please try again later.";
    // echoing JSON response
    echo json_encode($response);
}
} 
   }else {
   // required field is missing
   $response["success"] = 0;
   $response["message"] = "Please check you have completed all required fields";
       // echoing JSON response
       echo json_encode($response);
      }
    ?>

这是返回的 JSON;

    2013-10-07 00:03:59.465 ***[2517:c07] PostData: {'firstname':'ouyb' 'surname':'ouy' 'yob':'vbouv' 'gender':'GENDERouvy' 'hometown':'ouvy' 'phone':'ou' 'email':'vy' 'deviceid':'ilbuyv' 'regId':'obyouovy' 'phonetype':'uby'}
2013-10-07 00:03:59.645 ***[2517:c07] Response code:200
2013-10-07 00:03:59.645 ***[2517:c07] Respinse ==> {"success":0,"message":"Please check you     have completed all required fields"}
2013-10-07 00:03:59.646 ***[2517:c07] {
message = "Please check you have completed all required fields";
success = 0;
}

现在我的安卓应用程序以相同的格式发布 json 数组，并被 php 完全接受。我一辈子都无法弄清楚哪里出了问题。

通过从 php 中删除检查"如果为空"，将调用并运行 php 但没有数据输入数据库，但创建了一个新的空白行。对我来说，这听起来像该应用程序没有发送它声称发送的内容。

任何朝着正确方向的推动将不胜感激。