How does the Content-Type declaration in email headers impact the formatting of links in emails sent using PHP?

The Content-Type declaration in email headers impacts the formatting of links in emails sent using PHP by specifying the character set and encoding of the email content. If the Content-Type is not set correctly, special characters in links may not be displayed properly in the recipient's email client. To ensure proper formatting of links, set the Content-Type header to include the correct character set and encoding, such as UTF-8. 

// Set the Content-Type header to include the correct character set and encoding
$headers = 'Content-Type: text/html; charset=UTF-8\r\n';

// Send email with correct Content-Type header
mail($to, $subject, $message, $headers);

Keywords

Content-Type email headers formatting links PHP

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