Sending plain e-mails with CodeIgniter Email

It's always useful to be able to send e-mails and CodeIgniter comes with an excellent library for sending e-mails. There are a few recipes in this chapter, which deal with sending e-mails. However, this is the basic Hello World type example that is very simple.

How to do it...

A simple way to send plain e-mails using CodeIgniter Email is as follows:

  1. Create a file email.php at path/to/codeigniter/application/controllers/.
  2. Add the following code to the controller file email.php:
    <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'),

class Email extends CI_Controller {
    function __construct() {
        parent::__construct();
        $this->load->helper('url'),
        $this->load->library('email'),
    }

    public function index() {
        redirect('email/send_email'),
    }

    public function send_email() {
        $config['protocol'] = 'sendmail';
        $config['mailpath'] = '/usr/sbin/sendmail';
        $config['charset'] = 'iso-8859-1';
        $config['wordwrap'] = TRUE;
        $config['mailtype'] = 'text';

        $this->email->initialize($config);
        $this->email->from('[email protected]', 'Your Name'),
        $this->email->to('[email protected]'),
        $this->email->subject('This is a text email'),
        $this->email->message('And this is some content for the text email.'),

        $this->email->send();

        echo $this->email->print_debugger();
    }
}

How it works...

In the constructor controller we load the Email library (highlighted in the following code), which provides support to send e-mails:

function __construct() {
    parent::__construct();
    $this->load->helper('url'),
    $this->load->library('email'),
}

Next, public function index() redirects us to the function public function send_mail(), which sets some initial configuration variables for CodeIgniter Email library to work with, such as the system used to send the e-mail (in this case, sendmail), the path to send e-mail on your system, the mailtype variable (text or HTML), and so on. Take a look at the following line of code:

$config['mailtype'] = 'text';

Here, we're telling CodeIgniter to send the e-mail as just plain text rather than HTML.

These configuration settings are initialized (that is, passed to the Email library), and we begin to build the e-mail by setting the to, from, subject, and message attributes:

$this->email->from('[email protected]', 'Your Name'),
$this->email->to('[email protected]'),

$this->email->subject('This is a text email'),
$this->email->message('And this is some content for the text email.'),

Then, send the e-mail:

    $this->email->send();

If all works out as planned, you should see an output similar to the following one:

User-Agent: CodeIgniter
Date: Fri, 4 Oct 2013 08:51:03 +0200
From: "Your Name" <[email protected]>
Return-Path: <[email protected]>
To: [email protected]
Subject: =?iso-8859-1?Q?This_is_a_text_email?=
Reply-To: "[email protected]" <[email protected]>
X-Sender: [email protected]
X-Mailer: CodeIgniter
X-Priority: 3 (Normal)
Message-ID: <[email protected]>
Mime-Version: 1.0


Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

And this is some content for the text email.
..................Content has been hidden....................

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