./phpstan.phar analyse -a vendor/autoload.php -l 5 src

Warning: Unsupported declare 'strict_types' in phar:///var/www/html/admin/vendor/league/flysystem/phpstan.phar/bin/phpstan on line 3

Parse error: syntax error, unexpected ':', expecting '{' in phar:///var/www/html/admin/vendor/league/flysystem/phpstan.phar/bin/phpstan on line 16