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

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

$sql = "SELECT tijdstip, teller, adc0, adc1 FROM tabeltijd";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // output data of each row
    while($row = $result->fetch_assoc()) {
        echo "tijdstip: " . $row["tijdstip"]. " - teller: " . $row["teller"]. " - adc0: " . $row["adc0"]. " - adc1: " .  $row["adc1"] . "<br>";
    }
} else {
    echo "0 results";
}
$conn->close();
?>