What are the potential issues with using the mail() function in PHP for sending emails, especially in terms of character encoding like UTF-8?

When using the mail() function in PHP for sending emails, one potential issue is with character encoding, especially when using UTF-8 characters. To ensure proper encoding, you can set the appropriate headers in the email headers to specify the content type as UTF-8. 

$to = "recipient@example.com";
$subject = "Subject of the Email";
$message = "Message body with UTF-8 characters";

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

// Additional headers
$headers .= 'From: sender@example.com' . "\r\n";

mail($to, $subject, $message, $headers);

Keywords

mail function PHP character encoding UTF-8 email sending

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