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Dynamically dependent dropdown commonly seen in the country, state, and city selection on the webpage. The data on the child element changes according to the value of the parent element.
The process follows the same way if there are more than 2 dropdown elements.
To do this you can either use only PHP or jQuery AJAX.
In this tutorial, I am using jQuery AJAX to make dynamic dependent dropdown in CodeIgniter.
A route is a way to remapping, makes more meaningful and SEO friendly URLs. The visitor views the newly generated page URL and the route calls the defined action URL which will be hidden from the visitors.
In CodeIgniter, a URL consists of controller-name/method-name but you can manipulate it by declaring routing.
All routed actions will be written on the specific file.
Pagination on the page improves the user experience when there is a large number of records are available.
CodeIgniter has provided a library for effectively handle the pagination functionality.
In this tutorial, I am using the pagination library to create the paginated list of fetched result from MySQL database.
Handle session is very important when creating a member-based website where the user needs to register and login to their account to access website content.
With the help of a session, it is easier to identify the user and display the content accordingly.
In Codeigniter, require the loading session library to start work with Session. There are inbuilt methods are available that makes easier to handle session operations.
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