protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from, $extra)
    {
        if (!empty($this->action_function) and is_callable($this->action_function)) {
            call_user_func($this->action_function, $isSent, $to, $cc, $bcc, $subject, $body, $from, $extra);
        }
    }
protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from, $extra)
    {
        if (!empty($this->action_function) and is_callable($this->action_function)) {
            call_user_func($this->action_function, $isSent, $to, $cc, $bcc, $subject, $body, $from, $extra);
        }
    }
protected function doCallback ( $ isSent , $ to , $ cc , $ bcc , $ subject , $ body , $ from , $ extra ) { if ( ! empty ( $ this -> action_function ) and is_callable ( $ this -> action_function ) ) { call_user_func ( $ this -> action_function , $ isSent , $ to , $ cc , $ bcc , $ subject , $ body , $ from , $ extra ) ; } }
Perform a callback.

@param bool   $isSent
@param array  $to
@param array  $cc
@param array  $bcc
@param string $subject
@param string $body
@param string $from
@param array  $extra
Perform a callback .