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

@return  JMail  Returns this object for chaining.


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