error

See the User Guide: https://codeigniter.com/user_guide/insta...e_300.html

CI2 reached its End of Life. It is not maintained. Bug fix including security fix is not available. So if you use it, you must maintain by yourself.
http://forum.codeigniter.com/thread-61357.html

If you just want to try to work your application, it is probably enough to change database driver config (`dbdriver`) from `mysql` to `mysqli`.
See https://codeigniter.com/userguide2/datab...ation.html

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