Untitled

 <?php
 if(isset($_POST['extract']))
 {
$servername = "***";
$username = "***";
$password = "***";
$dbname = "***";
$tekst=$_POST['extract'];
try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    // prepare sql and bind parameters
    $stmt = $conn->prepare("INSERT INTO history (id, name, message, data)
    VALUES (NULL, :name, :message, :data)");
    $stmt->bindParam(':name', $name);
    $stmt->bindParam(':message', $message);
    $stmt->bindParam(':data', $data);

    $name = "Name";
    $message = $_POST['extract'];
    $data = "2018-08-08";
    $stmt->execute();

    echo "New records created successfully";
    }
catch(PDOException $e)
    {
    echo "Error: " . $e->getMessage();
    }
$conn = null;
}
?>

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <link rel="stylesheet" type="text/css" href="style.css">
    <link href="https://fonts.googleapis.com/css?family=Roboto+Condensed" rel="stylesheet">
    <title>Test</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<div class="chatDiv">
    <div class="chat" id="chatBox">
    </div>
        <form name="textBoxForm" method="POST">
                <textarea name="extract" id="textBox1"></textarea>
                <input name="submit" type="submit" class="show" onclick="show()" value="Wyślij" id="btn">
        </form>
</div>
<script type="text/javascript" src="main.js"></script>
</body>
</html>