How can developers troubleshoot and debug Umlaut display problems in PHP code?

Developers can troubleshoot and debug Umlaut display problems in PHP code by checking the character encoding of the text being displayed. If the text is not being displayed correctly, it may be due to the wrong character encoding being used. Developers can ensure that the correct character encoding (such as UTF-8) is being used in their PHP code to properly display Umlaut characters.

// Set the character encoding to UTF-8
header('Content-Type: text/html; charset=utf-8');

// Display text with Umlaut characters
echo 'Möglichkeiten für Entwickler';