english/libraries/joomla/mail/mail.php
/**
	 * Add blind carbon copy recipients to the email
	 *
	 * @param   mixed  $bcc	Either a string or array of strings [email address(es)]
	 *
	 * @return  JMail  Returns this object for chaining.
	 *
	 * @since   11.1
	 */
Add blind carbon copy recipients to the email
@param   mixed  $bcc Either a string or array of strings [email address(es)]

@return  JMail  Returns this object for chaining.


Add blind carbon copy recipients to the email @param mixed $bcc Either a string or array of strings [ email address ( es ) ] @return JMail Returns this object for chaining .
public function addBCC($bcc)
	{
		if (isset($bcc)) {
			if (is_array($bcc)) {
				foreach ($bcc as $to)
				{
					$to = JMailHelper::cleanLine($to);
					parent::AddBCC($to);
				}
			}
			else {
				$bcc = JMailHelper::cleanLine($bcc);
				parent::AddBCC($bcc);
			}
		}
		return $this;
	}
public function addBCC ( $ bcc ) { if ( isset ( $ bcc ) ) { if ( is_array ( $ bcc ) ) { foreach ( $ bcc as $ to ) { $ to = JMailHelper :: cleanLine ( $ to ) ; parent :: AddBCC ( $ to ) ; } } else { $ bcc = JMailHelper :: cleanLine ( $ bcc ) ; parent :: AddBCC ( $ bcc ) ; } } return $ this ; }
Add blind carbon copy recipients to the email
 @param   mixed  $bcc Either a string or array of strings [email address(es)]
Add blind carbon copy recipients to the email @param mixed $bcc Either a string or array of strings [ email address ( es ) ]
// If the blind carbon copy recipient is an array, add each recipient... otherwise just add the one