Not able to send data from nodeMCU-8266 to localhost (database) - arduino

Question

When I try to send data from nodemcu it shows -1, refer bellow image
[serial monitor][1]
[1]: https://i.stack.imgur.com/3IokX.jpg
you can see my ip address
[ip address][2]
[2]: https://i.stack.imgur.com/srNo1.jpg
my post code
<?php
//Creates new record as per request
//Connect to database
$servername = "127.0.0.1";
$username = "root";
$password = "";
$dbname = "sensor";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Database Connection failed: " . $conn->connect_error);
} else{
echo "success"."<br>";}
//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['sensor1']) || !empty($_POST['sensor2']))
{
$sensorData1 = $_POST['sensor1'];
$sensorData2 = $_POST['sensor2'];
$sensorData3 = $_POST['sensor3'];
$sensorData4 = $_POST['sensor4'];
$sensorData5 = $_POST['sensor5'];
$sensorData6 = $_POST['sensor6'];
$sensorData7 = $_POST['sensor7'];
$sql = "INSERT INTO logs (sensor1, sensor2,sensor3,sensor4,sensor5,sensor6,sensor7, Date, Time)
VALUES ('".$sensorData1."', '".$sensorData2."', '".$sensorData3."', '".$sensorData4."',
'".$sensorData5."', '".$sensorData6."', '".$sensorData7."', '".$d."', '".$t."')";
if ($conn->query($sql) === TRUE) {
echo "OK";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
}
$conn->close();
?>
and my Arduino code
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266HTTPClient.h>
const char *ssid = "mcu"; //ENTER YOUR WIFI ssid
const char *password = "123456789"; //ENTER YOUR WIFI password
void setup() {
connectWifi();
}
void loop() {
HTTPClient http; //Declare object of class HTTPClient
String sensorData1,sensorData2,sensorData3,sensorData4,sensorData5,sensorData6,sensorData7, postData;
sensorData1="High";
sensorData2="High";
sensorData3="High";
sensorData4="High";
sensorData5="High";
sensorData6="High";
sensorData7="High";
//Post Data
postData = "&sensor1=" + sensorData1 + "&sensor2=" + sensorData2+ "&sensor3=" + sensorData3+
"&sensor4=" + sensorData4+ "&sensor5=" + sensorData5+ "&sensor6=" + sensorData6+ "&sensor7=" +
sensorData7;
http.begin("http://192.168.137.1/esp8266/postData.php"); //change the ip to your
computer ip address
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
http.end(); //Close connection
delay(500); //Post Data at every 5 seconds
}
//function to connect to wifi
void connectWifi(){
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.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP()); //IP address assigned to your ESP
}
can you fin where is the mistake or missing part
I am using php version: 7.4.10