How can PHP beginners ensure that emails sent using the mail function are saved in the webmail sent folder?

When using the mail function in PHP to send emails, the emails are typically not automatically saved in the webmail sent folder. To ensure that emails sent using the mail function are saved in the webmail sent folder, you can use the additional headers parameter to include the "From" address in the email headers. This will make the email appear as if it was sent from the specified address, and some webmail providers will automatically save such emails in the sent folder.

$to = 'recipient@example.com';
$subject = 'Test Email';
$message = 'This is a test email';
$headers = 'From: sender@example.com' . "\r\n";

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