espdata/post-esp-data.php

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "datasensor";


$conn = mysqli_connect($servername, $username, $password, $dbname);

$api_key_value = "ideogen";

$api_key = $Tank1 = $Tank2 = $rainwater = $Turbidity = $pH_sensor= "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $api_key = test_input($_POST["api_key"]);
    if($api_key == $api_key_value) {
        
        $Tank1 = test_input($_POST["Tank1"]);
        $Tank2 = test_input($_POST["Tank2"]);
        $rainwater = test_input($_POST["rainwater"]);
        $Turbidity = test_input($_POST["Turbidity"]);
        $pH_sensor = test_input($_POST["pH_sensor"]);
        
        
        $sql = "INSERT INTO sensordata ( Tank1, Tank2, rainwater, Turbidity,pH_sensor)
        VALUES ('" . $Tank1 . "', '" . $Tank2 . "', '" . $rainwater . "', '" . $Turbidity . "', '" . $pH_sensor . "')";
        
        if ($conn->query($sql) === TRUE) {
            echo "New record created successfully";
        } 
        else {
            echo "Error: " . $sql . "<br>" . $conn->error;
        }
    
        $conn->close();
    }
    else {
        echo "Wrong API Key provided.";
    }

}
else {
    echo "No data posted with HTTP POST.";
}

function test_input($data) {
    $data = trim($data);
    $data = stripslashes($data);
    $data = htmlspecialchars($data);
    return $data;
}
?>