system/helpers/email_helper.php

<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.2.4 or newer
 *
 * NOTICE OF LICENSE
 *
 * Licensed under the Open Software License version 3.0
 *
 * This source file is subject to the Open Software License (OSL 3.0) that is
 * bundled with this package in the files license.txt / license.rst.  It is
 * also available through the world wide web at this URL:
 * http://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to obtain it
 * through the world wide web, please send an email to
 * licensing@ellislab.com so we can send you a copy immediately.
 *
 * @package		CodeIgniter
 * @author		EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
 * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * CodeIgniter Email Helpers
 *
 * @package		CodeIgniter
 * @subpackage	Helpers
 * @category	Helpers
 * @author		EllisLab Dev Team
 * @link		http://codeigniter.com/user_guide/helpers/email_helper.html
 */

// ------------------------------------------------------------------------

if ( ! function_exists('valid_email'))
{
	/**
	 * Validate email address
	 *
	 * @param	string
	 * @return	bool
	 */
	function valid_email($email)
	{
		return (bool) filter_var($email, FILTER_VALIDATE_EMAIL);
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('send_email'))
{
	/**
	 * Send an email
	 *
	 * @param	string
	 * @param	string
	 * @param	string
	 * @return	bool
	 */
	function send_email($recipient, $subject = 'Test email', $message = 'Hello World')
	{
		return mail($recipient, $subject, $message);
	}
}

/* End of file email_helper.php */
/* Location: ./system/helpers/email_helper.php */