Use PHP Response to store/use data - php

Question

I declared a function to send information from some textfields (POST), then I get a response with the information given. I also used components(separatedBy: String) to get an array with the information from every field. What am trying to do now is to use this information (one from the array) to store/use it so I can show the user, in a new view, the information saved.
My Swift looks like the following
#IBAction func enviarInfo(_ sender: Any) {
let request = NSMutableURLRequest(url: NSURL(string: "http://www.mydomain/index.php")! as URL)
request.httpMethod = "POST"
//The String with the vars that will be sent to the $_POST["var"]
let postString = "nombre=\(nombreText.text!)&aPaterno=\(apaternoText.text!)&aMaterno=\(amaternoText.text!)&genero=\(genero.text! &email=\(emailText.text!)&telefono=\(telefonoText.text!)"
request.httpBody = postString.data(using: String.Encoding.utf8)
let task = URLSession.shared.dataTask(with: request as URLRequest) {
data, response, error in
if error != nil {
print("error=\(String(describing: error))")
return
}
print("response = \(String(describing: response))")
let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
print("responseString = \(String(describing: responseString))")
//Use a split method to get relevant information only
let string: String = responseString! as String
var str = string.components(separatedBy: "##")
let resultadoUno = str[1]
var str2 = resultadoUno.components(separatedBy: ">>")
let resultadoDos = str2[0]
var str3 = resultadoDos.components(separatedBy: ";")
}
task.resume()
}
If I print, for example, str3[5] I get the phone number, or a name with str3[0], but what I don't know is, how to save the data and show it to the user via labels (label.text = the value from the array).

Answer 1

You can easily save Response string to UserDefaults, and restore and use them later.
First, define a class level constant as UserDefaults key:
let key = "responseString"
Second, save the string:
UserDefaults.standard.set(responseString, forKey: key)
UserDefaults.standard.synchronize()
Restore and use it when you need it:
guard let repsonseString = UserDefaults.standard.object(forKey: key) as? String else {
return
}
var strArray = repsonseString.components(separatedBy: "##")
if strArray.count > 0 {
let str2 = strArray[0].components(separatedBy: ">>")
// do something with str2
}
if strArray.count > 1 {
let str3 = strArray[1].components(separatedBy: ";")
if str3.count > 5 {
self.phoneLabel.text = str3[5]
}
}
The better practice is the PHP returns the dictionary instead of array, like:
{
phoneNumber:123456789,
userName:"Joy"
}
You get the response on iOS and convert JSON dictionary to Swift dictionary, and parse it into a Model(Like a User class). Then it will be very convenient to access data like: self.phoneNumberLabel.text = user.phoneNumber