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<?php $visibility = 'only_logged_in'; $loggedIn = true; var_dump(($visibility == 'only_logged_in' && $loggedIn) || ($visibility == 'not_logged_in' && !$loggedIn)); $loggedIn = false; var_dump(($visibility == 'only_logged_in' && $loggedIn) || ($visibility == 'not_logged_in' && !$loggedIn)); $visibility = 'not_logged_in'; $loggedIn = true; var_dump(($visibility == 'only_logged_in' && $loggedIn) || ($visibility == 'not_logged_in' && !$loggedIn)); $loggedIn = false; var_dump(($visibility == 'only_logged_in' && $loggedIn) || ($visibility == 'not_logged_in' && !$loggedIn));

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