PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

Implementing Administrative Functions
739
The parameters you pass to addHTMLImage() are the name of the image file (or you
could also pass the image data), the MIME type of the image, the filename again, and true
to signify that the first parameter is a filename rather than file data. (If you wanted to
pass raw image data, you would pass the data, the MIME type, an empty parameter, and
false.) These parameters are a little cumbersome.
At this stage, you need to create the message body before you can set up the message
headers.You create the body as follows:
// create message body
$body = $message->get();
You can then create the message headers with a call to the Mail_mime class’s headers()
function:
// create message headers
$from = '"'.get_real_name($admin_user).'" ';
$hdrarray = array(
'From' => $from,
'Subject' => $subject);
Finally, having set up the message, you can send it.To do this, you need to instantiate the
PEAR Mail class and pass to it the message you have created.You begin by instantiating
the class, as follows:
// create the actual sending object
$sender =& Mail::factory('mail');
(The parameter ‘mail’ here just tells the Mail class to use PHP’s mail() function to
send messages.You could also use ‘sendmail’ or ‘smtp’ as the value for this parameter
for the obvious results.)
Next, you send the mail to each of your subscribers.You do this by retrieving and
looping through each of the users subscribed to this list and using either the Mail
send() or regular mail() depending on the user’s MIME type preference:
if($subscriber[2]=='H') {
//send HTML version to people who want it
$sender->send($subscriber[1], $hdrs, $body);
} else {
//send text version to people who don't want HTML mail
mail($subscriber[1], $subject, $text,
'From: "'.get_real_name($admin_user).'"
');
}
The first parameter of $sender->send() should be the user’s email address; the second,
the headers; and the third, the message body.
That’s it! You have now completed building the mailing list application.