How can the problem of incorrect display of special characters like Umlauts be resolved in PHP emails?

Special characters like Umlauts may be displayed incorrectly in PHP emails due to encoding issues. To resolve this problem, you can use the PHP `mb_encode_mimeheader()` function to properly encode the special characters before sending the email. 

// Set the subject of the email with special characters properly encoded
$subject = 'Subject with Umlauts: ' . mb_encode_mimeheader('Äpfel und Bären', 'UTF-8');

// Set additional headers for proper encoding
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/plain; charset=UTF-8' . "\r\n";

// Send the email with the properly encoded subject
mail('recipient@example.com', $subject, 'Email body content', $headers);

Keywords

UTF-8 htmlentities mb_convert_encoding htmlspecialchars email encoding

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