<?php
$servername = "mysql.hostinger.pl";
$username = "u528067218_kuba";
$password = "*********";
$db = "u528067218_baza";
$content = $_POST['POSTY'];

$conn = new mysqli($servername, $username, $password,$db);

if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$conn->query("UPDATE posty SET post='$content' WHERE id=1");

$sql = "SELECT * FROM posty";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
    // output data of each row
     while($row = $result->fetch_assoc()) {
    echo '<table width="1000">';
    echo "<tr>";

        echo  "<td>".$row['post']."</td>";
        echo "</tr>";



    echo "</table>";
    }

} else {
}

$conn->close();

?>