CI 3 to CI 4 Encryption Compability

i have figure it out hot to resolve this problem. so. what i am doing is. take / copy Codeigniter 3 encryption class

@ardimardiana

I'm trying to do the same thing you've described here, but the CI3 Encryption class has a number of dependencies on functions in the CI3 \system\core\common.php library that don't exist in CI4 in the same way... Are there other files you brought over as well? It seems that copy over and rename isn't doing it.

Nevermind... your instructions are missing a key change though.  In the constructor you need to change

PHP Code:

if ( ! isset($this->_key) && self::strlen($key = config_item('encryption_key')) > 0) 


to

PHP Code:

if ( ! isset($this->_key) && self::strlen($key = config('Encryption')->key) > 0) 


Then it will work.