What is the issue with special characters like ß,ü,ä,ö when sending input field content via email in PHP?

Special characters like ß,ü,ä,ö can cause encoding issues when sending input field content via email in PHP. To solve this problem, you can use the mb_encode_mimeheader() function to encode the subject line of the email with the proper character set. 

// Set the subject line of the email with special characters encoded
$subject = '=?UTF-8?B?' . base64_encode(mb_encode_mimeheader($subject, 'UTF-8')) . '?=';

// Set the headers for the email
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";

// Send the email with the encoded subject line
mail($to, $subject, $message, $headers);

Keywords

Special characters email input field encoding PHP

Related Questions