ios : push notification badge count not increase in this payload formate

When application in background that time badge count not set last 5 days before is working properly.
Badge count every time increase by php backend ex. Current badge = 10 then after second push get then badge = 11

I am using bellow payload formate.
If any change in bellow formate then help me i read also refer Apple Push Notification Service.

push notification payload is a JSON payload:

{
    "aps": {
         "badge": 10,
         "alert": "Hello world!",
         "sound": "cat.caf"
    }
}

registerUserNotificationSettings

if (ios8)
    {
        if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
            UIUserNotificationSettings* notificationSettings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil];
            [[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings];
            [[UIApplication sharedApplication] registerForRemoteNotifications];
        }
        else
        {
            [[UIApplication sharedApplication] registerForRemoteNotificationTypes: (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
        }
    }
    else
    {
        [[UIApplication sharedApplication] registerForRemoteNotificationTypes: (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
    }