572.
573. foreach( $getCaptchaImages as $image)
574. {
575. if( $this->name() !== $image )
576. {
577. $captcha = $this->path . $image;
578.
579. if( is_file($captcha) )
580. {
581. unlink($captcha);
582. }
583. }
584. }
585. }
586.
587. /**
588. * protected captcha name
589. *
590. * @param void
591. *