Das ist noch html

<?php

// php code to Insert data into mysql database from input text

    $hostname = "mysql.webhosting51.1blu.de";
    $username = "s138563_3123585";
    $password = "%plMqnnJ2guI9X1";
    $databaseName = "db138563x3123585";
    
    // get values form input text and number
	if (!empty($_GET["id"])) {$id = $_GET["id"];} else {$id = 9999;}
	if (!empty($_GET["x"])) {$x = $_GET["x"];} else {$x = 9999;}
	if (!empty($_GET["y"])) {$y = $_GET["y"];} else {$y = 9999;}
	if (!empty($_GET["pm25"])) {$pm25 = $_GET["pm25"];} else {$pm25 = 9999;}
	if (!empty($_GET["pm10"])) {$pm10 = $_GET["pm10"];} else {$pm10 = 9999;}
	if (!empty($_GET["temp"])) {$temp = $_GET["temp"];} else {$temp = 9999;}
	if (!empty($_GET["humi"])) {$humi = $_GET["humi"];} else {$humi = 9999;}
	if (!empty($_GET["pres"])) {$pres = $_GET["pres"];} else {$pres = 9999;}
	

	$check = $id*$x*$y*$pm25*$pm10*$temp*$humi*$pres;
	if (empty($check)){
		echo "Non number characters detected"."<br>";
		echo "Not that easy to do an sql-injection =)"."<br>";
		die("Stopped");
	}
	
	
	$timestamp = time()+3600;  //bei sommerzeit 2h hinter UTC. IM WINTER UNBEDINGT AUF 3600 FÜR 1H ÄNDERN
	//echo $timestamp."<br>";
	$datum = date("Y-m-d", $timestamp);
	$time = date("H:i:s", $timestamp);
    // connect to mysql database using mysqli
    $connect = mysqli_connect($hostname, $username, $password, $databaseName);
	if (!$connect) {
		die("Connection failed: " . mysqli_connect_error());
	}
    
    // mysql query to insert data


    $query = "INSERT INTO FeinstaubVonPi (ID, Datum, Zeit, Breitengrad, Langengrad, PM25, PM10, temperature, humidity, pressure, windSpeed, windAngle, clouds) VALUES 
	($id,'$datum','$time',$y,$x,$pm25,$pm10,$temp,$humi,$pres,0,0,0)";
	//echo $query;
    // check if mysql query successful
	//echo $query."<br>";

    if(mysqli_query($connect,$query))
    {
        //echo 'Data Inserted';
    }
    
    else{
        echo "Error: " . $query . "<br>" . mysqli_error($connect);
    }

    mysqli_close($connect);

?>