After creating form in CodeIgniter framework one must learn to insert data into a database. Following steps explains you, how this operation can be done in easy way:-
        

• you must create connections with databases using  autoloard.php and databases.php in config folder
• you must create a PHP page in View directory of CodeIgniter, in which a form is created using CodeIgniter’s syntax.
• Second, you have to create class in Controller directory, in which the above PHP page(view) is loaded, applying validation over form fields and respective model is loaded.
• Third, for database connectivity in your application, a class is created in Model directory with database insert function. 

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You can also refer our live demo or download the Script file. Extract the downloaded files, save it in your local server and run it using path :

    creating autoloard.php

   creating databases.php

    to read views in moive_view.php this  moive_view.php interact with users

to read this file in the sever we need movie.php which located in contrallers

and last thin connect with database using  site_model.php in model part

 create database file

Thank You