I
$ php -v
PHP 7.4.13 (cli) (built: Nov 28 2020 06:25:16) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.13, Copyright (c), by Zend Technologies
with Xdebug v3.0.1, Copyright (c) 2002-2020, by Derick Rethans
$ php8.0 -v
PHP 8.0.0 (cli) (built: Nov 27 2020 12:26:38) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.0-dev, Copyright (c) Zend Technologies
with Zend OPcache v8.0.0, Copyright (c), by Zend Technologies
with Xdebug v3.0.1, Copyright (c) 2002-2020, by Derick Rethans