getting 404 bad request while posting values to mysql

Projects Networking, Protocols, and Devices
1

I'm trying to insert some values into MySQL database using nodemcu esp8266, but I'm getting 404 bad request your browser sent invalid request. I have applied all the solutions which i have seen in the arduino forum but nothing works for me. Please help me. Here is the code.

#include <ESP8266WiFi.h>
const char* ssid  = "RAHUL";
const char* password = "emorababu";
const char* host = "www.screccs.com";
const char* passcode = "xxxxxxx";
// Wake from sleep, in seconds.
#define wakeuptime 30

void setup() {
  Serial.begin(115200);
  delay(10);
  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("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  delay(5000);

  // Connect to host
  Serial.print("Connecting to ");
  Serial.println(host);
  // Use WiFiClient class to create TCP connections
 
}

void loop() {
 WiFiClient client;
  const int httpPort = 80;
  if (client.connect(host, httpPort))
  {
  // Create a URL for the request. Modify YOUR_HOST_DIRECTORY so that you're pointing to the PHP file.
  String id="14kq1a1229";
  String msg="hello";
  String txData = "id="+id+"&msg="+msg;

      Serial.println("\nconnected...");
      Serial.println("ARDUINO: forming HTTP request message");
      
      client.println("POST /db.php HTTP/1.1 \r");
      client.println("Host: www.screccs.com \r");
     //client.println("From: Arduino1 ");
    // client.println("User-Agent: HTTPTool/1.0");
    client.println("Accept: */** \r");
     client.print("Content-Length:");
                client.println(txData.length());
      client.println("Content-Type: application/x-www-form-urlencoded \r");
             
              // client.println("Connection: close");
             // client.println(txData);
              client.println("/r");

      Serial.println("ARDUINO: HTTP message sent");
      delay(3000);
      if(client.available())
      {
        Serial.println("ARDUINO: HTTP message received");
        Serial.println("ARDUINO: printing received headers and script response...\n");
        
        while(client.available())
        {
          char c = client.read();
          Serial.print(c);
        }
      }
      else
      {
        Serial.println("ARDUINO: no response received / no response received in time");
      }
      
      client.stop();
    }
    else
    {
      Serial.println("connection failure");
    }
    delay(2000);

                                
 
    
    

/*
  // Read all the lines of the reply from server and print them to Serial
  while (client.available()) {
    String line = client.readStringUntil('\r');
    Serial.print(line);
  }
  */

  Serial.println();
  Serial.println("Closing connection");
  
  // Sleep
  Serial.println("Going to sleep");
  delay(5000);
  //ESP.deepSleep(wakeuptime * 1000000, WAKE_RF_DEFAULT);
  delay(5000);

  
}

And I'm receiving the below response from server

ARDUINO: HTTP message received
ARDUINO: printing received headers and script response...

HTTP/1.0 400 Bad request
Cache-Control: no-cache
Connection: close
Content-Type: text/html

400 Bad request

Your browser sent an invalid request.

Closing connection
Going to sleep