the best way to make codeigniter website multi-language. calling from lang arrays depends on lang session?

I'm researching hours and hours, but I could not find any clear, efficient way to make it :/

I have a codeigniter base website in English and I have to add a Polish language now. What is the best way to make my site in 2 language depending visitor selection?

is there any way to create array files for each language and call them in view files depends on Session from lang selection? I don't wanna use database.

Appreciate helps! I'm running out of deadline :/ thanks!!

Have you seen CodeIgniter's Language library?

The Language Class provides functions to retrieve language files and lines of text for purposes of internationalization.

In your CodeIgniter system folder you'll find one called language containing sets of language files. You can create your own language files as needed in order to display error and other messages in other languages.

Language files are typically stored in your system/language directory. Alternately you can create a folder called language inside your application folder and store them there. CodeIgniter will look first in your application/language directory. If the directory does not exist or the specified language is not located there CI will instead look in your global system/language folder.

In your case...

• you need to create a polish_lang.php and english_lang.php inside application/language/polish
• then create your keys inside that file (e.g. $lang['hello'] = "Witaj";
• then load it in your controller like $this->lang->load('polish_lang', 'polish');
• then fetch the line like $this->lang->line('hello'); Just store the return value of this function in a variable so you can use it in your view.

Repeat the steps for the english language and all other languages you need.