how can run it on PHP Codeigniter?
We’ve had success compiling SQLCipher for PHP 8 (and 7, etc). Basically it involves replacing the sqlite3 library (and optionally the PDO library) with the SQLCipher version.
I don’t wish to ‘spam’ the forum but the steps involved are a bit long, so we wrote a Howto which you can find here:
Hope it helps!