ESP8266 Server/Client POST

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266mDNS.h>
#include <ESP8266WebServer.h>

const char* ssid     = "xxxxxxx"; // your ssid
const char* password = "xxxxxxx"; // your wiFi password
const char* host = "19.168.1.2"; // ip of your db server

int processLED = BUILTIN_LED; // output device D0
int onTime = 0; //time processLED stays on (ms)
int brightness; // brightness level of processLED (0-1023)

ESP8266WebServer server(80);    // Create a webserver object that listens for HTTP request on port 80

void handleRoot();              // function prototypes for HTTP handlers
void handleSubmit();
void handleNotFound();

void setup(void){
  Serial.begin(115200);         // Start the Serial communication to send messages to the computer
  delay(10);
  Serial.println('\n');


   // We start by connecting to a WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

 while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println('\n');
  Serial.print("Connected to ");
  Serial.println(WiFi.SSID());               // Tell us what network we're connected to
  Serial.print("IP address:\t");
  Serial.println(WiFi.localIP());            // Send the IP address of the ESP8266 to the computer

  if (MDNS.begin("esp8266")) {              // Start the mDNS responder for esp8266.local
    Serial.println("mDNS responder started");
  } else {
    Serial.println("Error setting up MDNS responder!");
  }

  server.on("/", HTTP_GET, handleRoot);        // Call the 'handleRoot' function when a client requests URI "/"
  server.on("/submit", HTTP_POST, handleSubmit); // Call the 'handleSubmit' function when a POST request is made to URI "/submit"
  server.onNotFound(handleNotFound);           // When a client requests an unknown URI (i.e. something other than "/"), call function "handleNotFound"

  server.begin();                            // Actually start the server
  Serial.println("HTTP server started");
}

void loop(void){
  server.handleClient();                     // Listen for HTTP requests from clients
}

void handleRoot() {                          // When URI / is requested, send a web page with a button to toggle the LED
  server.send(200, "text/html", "<form action=\"/submit\" method=\"POST\"><input type=\"text\" name=\"brightness\" placeholder=\"Brightness (0-1023)\"></br><input type=\"text\" name=\"onTime\" placeholder=\"onTime (ms)\"></br><input type=\"submit\" value=\"Submit\"></form>");
}

void handleSubmit() {                         // If a POST request is made to URI /login

    String time1 = server.arg("brightness");
    String press1 = server.arg("onTime");
    server.send(200, "text/html", "<h1>Brightness: " + brightness + " </h1><h1>On Time: " + onTime +" milliseconds</h1>");

    WiFiClient client;
    const int httpPort = 80;
    if (!client.connect(host, httpPort)) {
    Serial.println("connection failed");
    return;
    }

    String data;

    Serial.print("Requesting POST: ");
    // Send request to the server:
    data = "brightness=";
    data.concat(brightness);
    data.concat("&onTime=");
    data.concat(onTime);

    client.println("POST /test/mmtest/add.php HTTP/1.1"); // path to the add.php file
    client.println("Host: 192.168.1.2"); // SERVER ADDRESS HERE TOO
    client.println("Content-Type: application/x-www-form-urlencoded");
    client.print("Content-Length: ");
    client.println(data.length());
    client.println();
    client.print(data);

    delay(500); // Can be changed
    if (client.connected()) {
    client.stop();  // DISCONNECT FROM THE SERVER
    }
    Serial.println();
    Serial.println("closing connection");
    //delay(5000);

    analogWrite(processLED, brightness);
    delay(onTime);
    analogWrite(processLED,0);


}

void handleNotFound(){
  server.send(404, "text/plain", "404: Not found"); // Send HTTP status 404 (Not Found) when there's no handler for the URI in the request
}