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<?php $seg="20"; $horaActual=(new \DateTime())->format('Y-m-d H:i:s'); $horafinal = strtotime ( '-'.$seg.' second' , strtotime ( $horaActual ) ) ; $horafinal = date ( 'Y-m-d H:i:s' , $horafinal ); echo ($horaActual. PHP_EOL); echo ($horafinal. PHP_EOL); //print_r($horafinal); ?>

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