get the value form mySQL to swift by PHP - php

Question

i have the php file that return json_encode value and when i go to the http address they give me the value but
i cant get the value form the server side to my apps i have try many time but its not get it
func loadData() {
let url = NSURL(string: "http://example.com/getExpo.php")
let request = NSMutableURLRequest(URL: url!)
// modify the request as necessary, if necessary
NSURLSession.sharedSession().dataTaskWithRequest(request, completionHandler: { (data:NSData?, response:NSURLResponse?, error:NSError?) -> Void in
if error != nil {
// Display an alert message
print(error)
return
}
do {
let json = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers) as? NSDictionary
if (json != nil) {
//let userId = parseJSON["userId"] as? String
// Display an alert message
let userMessage = json!["id"] as? String
print(userMessage)
} else {
// Display an alert message
let userMessage = "Could not fetch Value"
print(userMessage)
}
} catch {
print(error)
}
}).resume()
}
any one can help , thank you !!

Answer 1

Your JSON response is an array of dictionaries:
[{"id":"115","expoName":"aziz","expoDetails":"aziz","expoPhone":"aziz","expoLocation":"aziz"}]
But you're trying to cast it as a Dictionary:
let json = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers) as? NSDictionary
The solution of course is to cast it as an array:
let json = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers) as? NSArray
Better use Swift types if you can:
let json = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? [[String:AnyObject]]
Then for example you can use a loop:
if let json = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? [[String:AnyObject]] {
for item in json {
let userMessage = item["id"] as? String
}
}