How can PHP developers ensure that HTML emails are properly formatted and sent using PHP?

To ensure that HTML emails are properly formatted and sent using PHP, developers can use the PHP `mail()` function along with setting appropriate headers to indicate that the email content is HTML formatted. This can be achieved by including the "Content-Type" and "MIME-Version" headers in the email headers. 

$to = 'recipient@example.com';
$subject = 'HTML Email Test';
$message = '<html><body><h1>Hello, this is a test email!</h1></body></html>';
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";

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

Keywords

PHP HTML emails formatting sending validation

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