Untitled

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

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

$sql = "SELECT * FROM htmldata WHERE element='pobject'"; #SQL SELECT query
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        $pdata = $row['data'];
    }
}
$conn->close();
?>

<html>
  <body>
    <p><?php echo $pdata; ?></p>
  </body>
</html>

<?php

if(!isset($_POST['pdata'])){
  echo "No data passed";
}else{
    $pdata = $_POST['pdata'];
    $servername = "localhost";
    $username = "username";
    $password = "password";
    $dbname = "myDB";

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

    $sql = "UPDATE htmldata SET data='$pdata' WHERE element='pobject'";
    $result = $conn->query($sql);
    $conn->close();
}

?>