Codeigniter по электронной почте — добавление BCC

Я новичок, поэтому, пожалуйста, потерпите меня.
Я пытаюсь добавить получателя BCC в один из конфигурационных файлов email.php приложений codeigniter. Оригинал был создан сотрудником, который с тех пор покинул наш бизнес, и я изо всех сил пытаюсь добавить получателя скрытой копии в код.
Я искал stackoverflow и пробовал бесконечные варианты, но мне не повезло. Все, что я хочу сделать, это определить одного получателя электронной почты для скрытой копии.
Я действительно очень ценю чью-либо помощь 🙂

Вот часть текущего кода, который я считаю уместным:

 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.1.6 or newer
*
* @package     CodeIgniter
* @author      ExpressionEngine Dev Team
* @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
* @license     http://codeigniter.com/user_guide/license.html
* @link        http://codeigniter.com
* @since       Version 1.0
* @filesource
*/

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

/**
* CodeIgniter Email Class
*
* Permits email to be sent using Mail, Sendmail, or SMTP.
*
* @package     CodeIgniter
* @subpackage  Libraries
* @category    Libraries
* @author      ExpressionEngine Dev Team
* @link        http://codeigniter.com/user_guide/libraries/email.html
*/
class CI_Email {

var $useragent      = "CodeIgniter";
var $mailpath       = "/usr/sbin/sendmail"; // Sendmail path
var $protocol       = "mail";   // mail/sendmail/smtp
var $smtp_host      = "";       // SMTP Server.  Example: mail.earthlink.net
var $smtp_user      = "";       // SMTP Username
var $smtp_pass      = "";       // SMTP Password
var $smtp_port      = "25";     // SMTP Port
var $smtp_timeout   = 5;        // SMTP Timeout in seconds
var $smtp_crypto    = "";       // SMTP Encryption. Can be null, tls or ssl.
var $wordwrap       = TRUE;     // TRUE/FALSE  Turns word-wrap on/off
var $wrapchars      = "76";     // Number of characters to wrap at.
var $mailtype       = "text";   // text/html  Defines email formatting
var $charset        = "utf-8";  // Default char set: iso-8859-1 or us-ascii
var $multipart      = "mixed";  // "mixed" (in the body) or "related" (separate)
var $alt_message    = '';       // Alternative message for HTML emails
var $validate       = FALSE;    // TRUE/FALSE.  Enables email validation
var $priority       = "3";      // Default priority (1 - 5)
var $newline        = "\n";     // Default newline. "\r\n" or "\n" (Use "\r\n" to comply with RFC 822)
var $crlf           = "\n";     // The RFC 2045 compliant CRLF for quoted-printable is "\r\n".  Apparently some servers,
// even on the receiving end think they need to muck with CRLFs, so using "\n", while
// distasteful, is the only thing that seems to work for all environments.
var $send_multipart = TRUE;     // TRUE/FALSE - Yahoo does not like multipart alternative, so this is an override.  Set to FALSE for Yahoo.
var $bcc_batch_mode = FALSE;    // TRUE/FALSE  Turns on/off Bcc batch feature
var $bcc_batch_size = 200;      // If bcc_batch_mode = TRUE, sets max number of Bccs in each batch
var $_safe_mode     = FALSE;
var $_subject       = "";
var $_body          = "";
var $_finalbody     = "";
var $_alt_boundary  = "";
var $_atc_boundary  = "";
var $_header_str    = "";
var $_smtp_connect  = "";
var $_encoding      = "8bit";
var $_IP            = FALSE;
var $_smtp_auth     = FALSE;
var $_replyto_flag  = FALSE;
var $_debug_msg     = array();
var $_recipients    = array();
var $_cc_array      = array();
var $_bcc_array     = array();
var $_headers       = array();
var $_attach_name   = array();
var $_attach_type   = array();
var $_attach_disp   = array();
var $_protocols     = array('mail', 'sendmail', 'smtp');
var $_base_charsets = array('us-ascii', 'iso-2022-');   // 7-bit charsets (excluding language suffix)
var $_bit_depths    = array('7bit', '8bit');
var $_priorities    = array('1 (Highest)', '2 (High)', '3 (Normal)', '4 (Low)', '5 (Lowest)');/**
* Constructor - Sets Email Preferences
*
* The constructor can be passed an array of config values
*/
public function __construct($config = array())
{
if (count($config) > 0)
{
$this->initialize($config);
}
else
{
$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;
$this->_safe_mode = ((boolean)@ini_get("safe_mode") === FALSE) ? FALSE : TRUE;
}

log_message('debug', "Email Class Initialized");
}

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

/**
* Initialize preferences
*
* @access  public
* @param   array
* @return  void
*/
public function initialize($config = array())
{
foreach ($config as $key => $val)
{
if (isset($this->$key))
{
$method = 'set_'.$key;

if (method_exists($this, $method))
{
$this->$method($val);
}
else
{
$this->$key = $val;
}
}
}
$this->clear();

$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;
$this->_safe_mode = ((boolean)@ini_get("safe_mode") === FALSE) ? FALSE : TRUE;

return $this;
}

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

/**
* Initialize the Email Data
*
* @access  public
* @return  void
*/
public function clear($clear_attachments = FALSE)
{
$this->_subject     = "";
$this->_body        = "";
$this->_finalbody   = "";
$this->_header_str  = "";
$this->_replyto_flag = FALSE;
$this->_recipients  = array();
$this->_cc_array    = array();
$this->_bcc_array   = array();
$this->_headers     = array();
$this->_debug_msg   = array();

$this->_set_header('User-Agent', $this->useragent);
$this->_set_header('Date', $this->_set_date());

if ($clear_attachments !== FALSE)
{
$this->_attach_name = array();
$this->_attach_type = array();
$this->_attach_disp = array();
}

return $this;
}

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

/**
* Set FROM
*
* @access  public
* @param   string
* @param   string
* @return  void
*/
public function from($from, $name = '')
{
if (preg_match( '/\<(.*)\>/', $from, $match))
{
$from = $match['1'];
}

if ($this->validate)
{
$this->validate_email($this->_str_to_array($from));
}

// prepare the display name
if ($name != '')
{
// only use Q encoding if there are characters that would require it
if ( ! preg_match('/[\200-\377]/', $name))
{
// add slashes for non-printing characters, slashes, and double quotes, and surround it in double quotes
$name = '"'.addcslashes($name, "\0..\37\177'\"\\").'"';
}
else
{
$name = $this->_prep_q_encoding($name, TRUE);
}
}

$this->_set_header('From', $name.' <'.$from.'>');
$this->_set_header('Return-Path', '<'.$from.'>');

return $this;
}

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

/**
* Set Reply-to
*
* @access  public
* @param   string
* @param   string
* @return  void
*/
public function reply_to($replyto, $name = '')
{
if (preg_match( '/\<(.*)\>/', $replyto, $match))
{
$replyto = $match['1'];
}

if ($this->validate)
{
$this->validate_email($this->_str_to_array($replyto));
}

if ($name == '')
{
$name = $replyto;
}

if (strncmp($name, '"', 1) != 0)
{
$name = '"'.$name.'"';
}

$this->_set_header('Reply-To', $name.' <'.$replyto.'>');
$this->_replyto_flag = TRUE;

return $this;
}

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

/**
* Set Recipients
*
* @access  public
* @param   string
* @return  void
*/
public function to($to)
{
$to = $this->_str_to_array($to);
$to = $this->clean_email($to);

if ($this->validate)
{
$this->validate_email($to);
}

if ($this->_get_protocol() != 'mail')
{
$this->_set_header('To', implode(", ", $to));
}

switch ($this->_get_protocol())
{
case 'smtp'     :
$this->_recipients = $to;
break;
case 'sendmail' :
case 'mail'     :
$this->_recipients = implode(", ", $to);
break;
}

return $this;
}

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

/**
* Set CC
*
* @access  public
* @param   string
* @return  void
*/
public function cc($cc)
{
$cc = $this->_str_to_array($cc);
$cc = $this->clean_email($cc);

if ($this->validate)
{
$this->validate_email($cc);
}

$this->_set_header('Cc', implode(", ", $cc));

if ($this->_get_protocol() == "smtp")
{
$this->_cc_array = $cc;
}

return $this;
}

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

/**
* Set BCC
*
* @access  public
* @param   string
* @param   string
* @return  void
*/
public function bcc($bcc, $limit = '')
{
if ($limit != '' && is_numeric($limit))
{
$this->bcc_batch_mode = TRUE;
$this->bcc_batch_size = $limit;
}

$bcc = $this->_str_to_array($bcc);
$bcc = $this->clean_email($bcc);

if ($this->validate)
{
$this->validate_email($bcc);
}

if (($this->_get_protocol() == "smtp") OR ($this->bcc_batch_mode && count($bcc) > $this->bcc_batch_size))
{
$this->_bcc_array = $bcc;
}
else
{
$this->_set_header('Bcc', implode(", ", $bcc));
}

return $this;
}

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