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

Sending Mail
683
Clicking the Send Message button invokes the ‘send-message’ action, which executes
the following code:
case 'send-message':
if(send_message($to, $cc, $subject, $message)) {
echo "Message sent.";
} else {
echo "Could not send message.";
}
This code calls the send_message() function, which actually sends the mail.This function
is shown in Listing 29.12.
Listing 29.12 send_message() Function from mail_fns.php—This Function Sends
the Message That the User Has Typed In
function send_message($to, $cc, $subject, $message) {
// send one email via PHP
if (!$conn=db_connect()) {
return false;
}
$query = "select address from users where
username='".$_SESSION['auth_user']."'";
$result = $conn->query($query);
if (!$result) {
return false;
} else if ($result->num_rows==0) {
return false;
} else {
$row = $result->fetch_object();
$other = 'From: '.$row->address;
if (!empty($cc)) {
$other.="\r\nCc: $cc";
}
if (mail($to, $subject, $message, $other)) {
return true;
} else {
return false;
}
}
}