swift unable to parse php data - php

Question

I have been trying to fetch certain values from database through my postString, but it doesn't return any value. Php is tested and its working fine, any help would be appreciated. Below is the code.
import UIKit
class DisplayDetailedViewController: UIViewController {
var role = String()
var date = String()
var city = String()
var mark_ref = String()
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func getData(){
let myUrl = URL(string:"http://xxxxxx.co.in/xxxxx/show_report1.php")
var request = URLRequest(url: myUrl! as URL)
request.httpMethod = "POST"
let postString = "city=\(city)&date=\(date)&market_rep=\(mark_ref)"
request.httpBody = postString.data(using: String.Encoding.utf8)
let task = URLSession.shared.dataTask(with: request) { (data: Data?, response: URLResponse?, error: Error?) in
DispatchQueue.main.async{
if error != nil{
print("error is\(String(describing: error))")
}
do{
let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary
if let parseJSON = json {
let myBoard : String!
myBoard = parseJSON["success"] as! String?
print(myBoard)
}
}
catch {
print(error)
}
}
}
task.resume()
}
}

Answer 1

Try 1: Replace below line (NSDictionary)
let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary
Try 2: Replace below line (NSArray)
let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSArray
Try 3: Replace below line (NSString)
let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSArray
Also try to options: .mutableContainers -> options: JSONSerialization.ReadingOptions.allowFragments