Send Email with SMTP and PHP Mailer

In this tutorial we have a simple script which send email through SMTP (Send Mail Transfer protocol) with PHP Mailer. We need <a href="http://phpmailer.worxware.com/">phpmailer</a> library and bellow given code.

<?php
    require_once('PHPMailer_v5.1/class.phpmailer.php'); //library added in download source.
    $msg  = 'Hello World';
    $subj = 'test mail message';
    $to   = 'info@site.com';
    $from = 'you@youremail.com';
    $name = 'My Name';

    echo smtpmailer($to,$from, $name ,$subj, $msg);

    function smtpmailer($to, $from, $from_name = 'Example.com', $subject, $body, $is_gmail = true) {
        global $error;
        $mail = new PHPMailer();
        $mail->IsSMTP();
        $mail->SMTPAuth = true;
        if($is_gmail) {
            $mail->SMTPSecure = 'ssl';
            $mail->Host = 'smtp.gmail.com';
            $mail->Port = 465;
            $mail->Username = 'admin@example.com';
            $mail->Password = '*******';  
        }
        else {
            $mail->Host = 'smtp.mail.google.com';
            $mail->Username = 'admin@example.com';
            $mail->Password = '******';
        }
        $mail->IsHTML(true);
        $mail->From="admin@example.com";
        $mail->FromName="Example.com";
        $mail->Sender=$from; // indicates ReturnPath header
        $mail->AddReplyTo($from, $from_name); // indicates ReplyTo headers
        $mail->AddCC('cc@site.com.com', 'CC: to site.com');
        $mail->Subject = $subject;
        $mail->Body = $body;
        $mail->AddAddress($to);
        if(!$mail->Send()) {
            $error = 'Mail error: '.$mail->ErrorInfo;
            return true;
        }
        else {
            $error = 'Message sent!';
            return false;
        }
    }
?>