MAIL -> boolean addheader ( string name, string value [, string charset [, string encoding ]] )
Return TRUE if has been successfully added, FALSE if not. Default values are: string charset: utf-8 string encoding: quoted-printable string encoding possible values are: quoted-printable or base64 The most important values of header (see the list) can not be set. This values are automatically build or you can use a function to set it. List of headers name that can NOT be set using this function: Subject, From, To, Cc, Bcc, Date, Content-Type, Content-Transfer-Encoding, Content-Disposition, Message-ID, X-Mailer, X-Priority, X-MSMail-Priority, X-MimeOLE, MIME-Version Notice: you can add multiple header values with the same name. Example (verification):

$m = new MAIL;

// add "X-Whatever" mail header value
$h = $m->AddHeader('X-Whatever', 'the value');

echo $h ? 'added' : 'error';
Example (deprecated):

$m = new MAIL;

// add "X-Whatever" mail header value, charset and encoding
$m->Header[] = array(
'name'     => 'X-Whatever', // required
'value'    => 'the value', // required
'charset'  => 'utf-8', // optional
'encoding' => 'base64' // optional
// add another "X-Whatever" mail header value
$m->Header[] = array('name' => 'X-Whatever', 'value' => 'the second value');

See Also: MAIL->DelHeader() [ Comments ] Last update: Tuesday, October 23, 2007