How can PHP developers ensure proper character encoding when displaying text received via GET requests?

Developers can ensure proper character encoding when displaying text received via GET requests by using the `mb_convert_encoding` function to convert the text to the desired character encoding, such as UTF-8. This function will help prevent any encoding issues and ensure that the text is displayed correctly on the webpage.

$text = $_GET['text']; // Text received via GET request
$encoded_text = mb_convert_encoding($text, 'UTF-8', 'auto'); // Convert text to UTF-8 encoding
echo $encoded_text; // Display the properly encoded text