<?php
$servername="localhost";
$username="root";
$password="";
$dbname="USTAWSWOJE";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO $nazwatabeli ($kolumna) VALUES ('$pole')";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
    // output data of each row
    while($row = $result->fetch_assoc()) {
        echo "$row['test'].$row['test'].$row['test']. '<br>'";
    }
} else {
    echo "0 wynikow";
}
$conn->close();
?>