Hello guys, i am trying to store data to a mysql database, however the values from the arduino are not getting passed to the add.php webpage here is my code
Arduino
#include <SPI.h>
#include <Ethernet.h>
#include <OneWire.h>
#include <DallasTemperature.h>
String data;
int led = 3;
int DS18S20_Pin = 2; // Set temperature sensor in pin 2
// Data wire is plugged into pin 2 on the Arduino
#define ONE_WIRE_BUS 2
// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);
// Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors(&oneWire);
// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[] = {
0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 };
IPAddress server(192,168,1,3); // Your webserver IP
// Initialize the Ethernet client library
// with the IP address and port of the server
// that you want to connect to (port 80 is default for HTTP):
EthernetClient client;
void setup() {
sensors.begin();
// start the serial library:
Serial.begin(9600);
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// no point in carrying on, so do nothing forevermore:
for(;;)
;
}
// give the Ethernet shield a second to initialize:
delay(1000);
pinMode(3, OUTPUT);
}
void loop()
{
Serial.println("connecting...");
delay(5000);
// call sensors.requestTemperatures() to issue a global temperature
// request to all devices on the bus
Serial.print("Requesting temperatures...");
sensors.requestTemperatures(); // Send the command to get temperatures
// delay(2000);
int Temp1 = sensors.getTempCByIndex(1);
int Temp2 = sensors.getTempCByIndex(0);
int AverageTemp= (Temp1 + Temp2) / 2.0f;
Serial.println("DONE");
Serial.print("Temperature for Device 1 is: ");
Serial.println(Temp1); // Why "byIndex"? You can have more than one IC on the same bus. 0 refers to the first IC on the wire
Serial.print("Temperature for Device 2 is: ");
Serial.println(Temp2);
Serial.print("Average temp is...");
Serial.println (AverageTemp);
//---------------------------------------------------------------------------------------------------------
int t;
int h;
t=Temp1;
h=Temp2;
data+="";
data+="temp1=";
data+=(int) Temp1;
data+="&hum1=";
data+=(int) Temp2;
//data+="&submit=Submit";
if (client.connect("192.168.1.3",8083)) { // REPLACE WITH YOUR SERVER ADDRESS
Serial.println("connected to server");
client.println("POST /home/add.php HTTP/1.1");
Serial.println("send to add.php");
client.println("Host: 192.168.1.3"); // SERVER ADDRESS HERE TOO
client.println("Content-Type: application/x-www-form-urlencoded");
client.print("Content-Length: ");
client.println(data.length());
client.println();
client.println(data);
Serial.println ("DATA SENDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD");
client.stop();
}
else {
// if you didn't get a connection to the server:
Serial.println("NO DATA");
}
Serial.print(data);
data = "";
delay(2000);
}
connect.php
<?php
function Connection(){
$server="localhost";
$user="root";
$pass="root";
$db="arduino";
$connection = mysqli_connect($server, $user, $pass );
if (!$connection) {
die('MySQL ERROR: ' . mysql_error());
}
mysqli_select_db($connection,"arduino") or die( 'MySQL ERROR: '. mysql_error() );
return $connection;
}
?>
index.php
<?php
include("connect.php");
$link=Connection();
$result=mysql_query('SELECT * FROM tempLog ORDER BY timeStamp'); //DESC",$link);
?>
<html>
<head>
<title>Sensor Data</title>
</head>
<body>
<h1>Temperature / moisture sensor readings</h1>
<table border="1" cellspacing="1" cellpadding="1">
<tr>
<td> Timestamp </td>
<td> Temperature 1 </td>
<td> Moisture 1 </td>
</tr>
<?php
if($result!==FALSE){
while($row = mysql_fetch_array($result)) {
printf("<tr><td> %s </td><td> %s </td><td> %s </td></tr>",
$row["timeStamp"], $row["temperature"], $row["humidity"]);
}
mysql_free_result($result);
mysql_close();
}
?>
</table>
</body>
</html>
add.php
<?php
include("connect.php");
//$link=Connection();
$link = mysqli_connect($server, $user, $pass );
$temp1=$_POST['temp1'];
$hum1=$_POST['hum1'];
if (empty($temp1)) {
echo '$var is either 0, empty, or not set at all';
}
$query = "INSERT INTO tempLog('temperature','humidity') VALUES ('$temp1','$hum1')";
mysql_query($query);
// mysql_close($link);
if (!$query) {
die('Invalid query: ' . mysql_error());
}
mysqli_close ($link);
header("Location: index.php");
?>
Serial print output from arduino
connecting...
Requesting temperatures...DONE
Temperature for Device 1 is: 19
Temperature for Device 2 is: 19
Average temp is...19
connected to server
send to add.php
DATA SENDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
temp1=19&hum1=19connecting...
Requesting temperatures...DONE
Temperature for Device 1 is: 19
Temperature for Device 2 is: 19
Average temp is...19
connected to server
send to add.php
DATA SENDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
temp1=19&hum1=19connecting...
when i access the add.php it displays this message
$var is either 0, empty, or not set at all
Warning: Cannot modify header information - headers already sent by (output started at C:\AppServ\www\Home\add.php:11) in C:\AppServ\www\Home\add.php on line 27
My root directory of my webpage is
192.168.1.3/home/index.php
i am stuck with this problem like forever 
Any help would be greatly appreciated.
Thanks in advance
