#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266HTTPClient.h>

/* Desired credentials. */
const char *ssid = "ZONG-E5573";
const char *password = "42546791";

//Web/Server address to read/write from
const char *host = "192.168.8.100";   //website or IP address of server
void setup() {
  delay(1000);
  Serial.begin(115200);
  WiFi.mode(WIFI_OFF);        //Prevents reconnection issue (taking too long to connect)
  delay(1000);
  WiFi.mode(WIFI_STA);        //This line hides the viewing of ESP as wifi hotspot

  WiFi.begin(ssid, password);     //Connect to your WiFi router
  Serial.println("");

  Serial.print("Connecting");
  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  //If connection successful show IP address in serial monitor
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());  //IP address assigned to your ESP
}

//=======================================================================
//                    Main Program Loop
//=======================================================================
void loop() {
  HTTPClient http;    //Declare object of class HTTPClient

  String ADCData, station, postData;
  int adcvalue=random(10,40);  //Random integer value
  ADCData = String(adcvalue);   //String to interger conversion
  station = "A";

  //Post Data
  postData = "status=" + ADCData + "&station=" + station ;

  http.begin("http://192.168.8.100/fypdemo/postdemo.php");              //Specify request destination
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");    //Specify content-type header

  int httpCode = http.POST(postData);   //Send the request
  String payload = http.getString();    //Get the response payload

  Serial.println(httpCode);   //Print HTTP return code
  Serial.println(payload);    //Print request response payload
  Serial.println(postData);

  http.end();  //Close connection

  delay(5000);  //Post Data at every 5 seconds
}

<?php
//Creates new record as per request
    //Connect to database
    $servername = "localhost";
    $username = "root";
    $password = "";
    $dbname = "espdemo";

    // Create connection
    $conn = new mysqli($servername, $username, $password, $dbname);
    // Check connection
    if ($conn->connect_error) {
        die("Database Connection failed: " . $conn->connect_error);
    }

    //Get current date and time
    date_default_timezone_set('Asia/Kolkata');
    $d = date("Y-m-d");
    //echo " Date:".$d."<BR>";
    $t = date("H:i:s");

    if(!empty($_POST['status']) && !empty($_POST['station']))
    {
        $status = $_POST['status'];
        $station = $_POST['station'];

        $sql = "INSERT INTO logs (station, status, Date, Time)

        VALUES ('".$station."', '".$status."', '".$d."', '".$t."')";

        if ($conn->query($sql) === TRUE) {
            echo "OK";
        } else {
            echo "Error: " . $sql . "<br>" . $conn->error;
        }
    }
    $conn->close();
?>