skrypt php tworzy zawartość pliku ics czyli kalendarza (gdy podglądnę kod źródłowy strony). jak sprawić, żeby uruchomienie tego skryptu utworzyło plik ics?

[PHP] pobierz, plaintext 
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "calendar";
 
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
$conn->set_charset("utf8");
$sql = "SELECT * FROM calendar WHERE id_employee='0100000001'";
$result = $conn->query($sql);
 
if ($result->num_rows > 0) {
 
echo "BEGIN:VCALENDAR \n";
echo "PRODID:-//Google Inc//Google Calendar 70.9054//EN \n";
echo "VERSION:2.0 \n";
echo "CALSCALE:GREGORIAN \n";
echo "METHOD:PUBLISH \n";
echo "X-WR-CALNAME:Kalendarz \n";
echo "X-WR-TIMEZONE:Europe/Warsaw \n";
 
    while($row = $result->fetch_assoc()) {
 
 
$h_start = $row['h_start'];
$h_end = $row['h_end'];
$imie = $row['imie'];
$nazwisko = $row['nazwisko'];
$schedule_notes = $row['schedule_notes'];
$komorka = $row['komorka'];
$uid = substr(sha1(mt_rand()),26,26);
 
 
 
 
 
	echo "BEGIN:VEVENT\n";
 
	echo "SUMMARY:"; //20211227T190000
	echo $imie;
	echo " ";
	echo $nazwisko;
	echo "\n";
 
	echo "DTSTART:"; //20211227T190000
	echo DateTime::createFromFormat('Y-m-d H:i:s', $h_start)->format('Ymd');
	echo "T";
	echo DateTime::createFromFormat('Y-m-d H:i:s', $h_start)->format('His');
	echo "\n";
 
	echo "DTEND:"; //20211227T190000
	echo DateTime::createFromFormat('Y-m-d H:i:s', $h_end)->format('Ymd');
	echo "T";
	echo DateTime::createFromFormat('Y-m-d H:i:s', $h_end)->format('His');
	echo "\n";
 
	echo "UID:"; //7ko43dfm8luc0l4ouv5c16rs10@google.com
	echo $uid;
	echo "@google.com\n";
 
	echo "DESCRIPTION:";
		if (is_null($schedule_notes)) {
			echo "";
		} else {
			echo $schedule_notes;
		}
	echo "-";
 
	echo "tel:";
 
		if (is_null($komorka)) {
			echo "";
		} else {
			echo $komorka;
		}
 
	echo "-";
	echo "\n";
 
	echo "CREATED:20200504T070405Z";
	echo "\n";
 
	echo "LAST-MODIFIED:20200504T070405Z";
	echo "\n";
 
	echo "DTSTAMP:20211227T214436Z";
	echo "\n";
 
	echo "LOCATION:";
	echo "\n";
 
	echo "SEQUENCE:0";
	echo "\n";
 
	echo "STATUS:CONFIRMED";
	echo "\n";	
 
	echo "TRANSP:OPAQUE";
	echo "\n";	
 
 
	echo "END:VEVENT\n";
    }
 
	echo "END:VCALENDAR\n";
 
} else {
    echo "brak wyników";
}
#$conn->close();
?>   
[PHP] pobierz, plaintext 

fopen i fclose.