I ran it inside /public/ directory and earned this error message Could not open input file: flarum
besides, flarum ssh file in on root directory too. so I moved out of the current dir and ran same php flarum info
and found this
Flarum core 0.1.0-beta.9
PHP version: 7.2.4-1+b1
Loaded extensions: Core, date, libxml, openssl, pcre, zlib, filter, hash, pcntl, Reflection, SPL, session, sodium, standard, mysqlnd, PDO, xml, bz2, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, iconv, json, exif, mysqli, pdo_mysql, Phar, posix, readline, shmop, SimpleXML, sockets, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xmlreader, xmlwriter, xsl, zip, Zend OPcache
+----------------------+---------------+--------+
| Flarum Extensions | | |
+----------------------+---------------+--------+
| ID | Version | Commit |
+----------------------+---------------+--------+
| flarum-approval | v0.1.0-beta.8 | |
| flarum-bbcode | v0.1.0-beta.8 | |
| flarum-emoji | v0.1.0-beta.8 | |
| flarum-lang-english | v0.1.0-beta.9 | |
| flarum-flags | v0.1.0-beta.9 | |
| flarum-likes | v0.1.0-beta.9 | |
| flarum-lock | v0.1.0-beta.9 | |
| flarum-markdown | v0.1.0-beta.9 | |
| flarum-mentions | v0.1.0-beta.9 | |
| flarum-statistics | v0.1.0-beta.9 | |
| flarum-sticky | v0.1.0-beta.9 | |
| flarum-subscriptions | v0.1.0-beta.9 | |
| flarum-suspend | v0.1.0-beta.9 | |
| flarum-tags | v0.1.0-beta.9 | |
+----------------------+---------------+--------+
Base URL: http://127.0.0.1/flarum
Installation path: /var/www/html/flarum
Debug mode: off