php

<?php
$servername = "localhost";
$username = "manuel";
$password = "passwort";
$dbname = "werist.online";
$url = "test123";
$status = "ONTHELINE";
$privekey = "45edzuwQJUFHBSRDGHGVVGIOWEFV";
$adminlvl = "0";

// Create connection
$conn = mysql_connect($servername, $username, $password, $dbname);
// Check connection
if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
}
$result = mysql_query("SELECT PrivKey FROM users WHERE url = 'test123'");
if(mysql_num_rows($result) === NULL) {
     // row not found, do stuff...
	 echo "Kunde schon vorhanden!";
} else {
    // do other stuff..
	echo "Kunde wurde geschrieben";

$sql = "INSERT INTO users (PrivKey, url, status, adminlvl)
VALUES ('$privekey','$url','$status','$adminlvl')";

if (mysql_query($conn, $sql)) {
    echo "New record created successfully";
} else {
    echo "Error: " . $sql . "<br>" . mysql_error($conn);
}
}
mysql_close($conn);
?>