Are there best practices or specific methods to handle Umlaut characters in PHP when creating calendar files for Outlook?

When creating calendar files for Outlook in PHP, it's important to handle Umlaut characters (such as ä, ö, ü) properly to ensure compatibility. One way to do this is by using the mb_convert_encoding function to convert the characters to UTF-8 encoding before including them in the calendar file. 

// Convert Umlaut characters to UTF-8 encoding
$event_title = "Müller's Birthday";
$event_title = mb_convert_encoding($event_title, 'UTF-8');

// Include the converted characters in the calendar file
$calendar_data = "BEGIN:VEVENT
SUMMARY:$event_title
DTSTART;VALUE=DATE:20230101
END:VEVENT";

Keywords

Umlaut characters PHP calendar files Outlook handling

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