How can developers troubleshoot issues with attendee information not displaying correctly in generated iCalendar files?

Issue: Developers can troubleshoot issues with attendee information not displaying correctly in generated iCalendar files by ensuring that the attendee email addresses are properly formatted and encoded using base64. Additionally, they should verify that the attendee information is correctly structured within the iCalendar file.

// Ensure attendee email addresses are properly formatted and encoded
$attendee_email = "john.doe@example.com";
$attendee_name = "John Doe";
$attendee_encoded = "=?UTF-8?B?" . base64_encode($attendee_name) . "?=";

// Add attendee information to iCalendar file
$ical_data .= "ATTENDEE;CN=\"$attendee_encoded\":mailto:$attendee_email\n";