Codeigniter 4 CRUD In this tutorial I am going to show how to build CRUD (Create Read Update Delete) application using Codeigniter 4 and MySQL database using basic AJAX (Asynchronous JavaScript and XML) technique. I won’t use AJAX technique for all four operations, i.e., fetching (Read), saving (Create), updating and deleting. Out of these four operations, I will use AJAX…

Multiple Rows Deletion Here I am going to build an example on how to select multiple rows from HTML table and delete these multiple selected table rows from MySQL database using CodeIgniter 4 with the help of AJAX technique in jQuery. In this tutorial I am going to fetch all records from the MySQL database and displaying on an HTML…

The example CodeIgniter 4 MySQL AJAX nested comment system will show you how to build a threaded comment system using PHP based web framework CodeIgniter 4, MySQL 8 and jQuery with AJAX technique. This nested comment system is also called hierarchical comment system. This threaded or nested comment system in PHP AJAX accepts reply up to maximum of five level…

In this tutorial I am going to show you how you can build an online visitor tracking system using PHP based framework CodeIgniter 4, MySQL 8 and AJAX technique. The similar system for tracking online visitors on web site, I built in past, using CodeIgniter 3 framework. As a web site owner you would like to the progress to the…

Here I am going to explain how to use AJAX with CodeIgniter 4 and MySQL to check the availability of username on key event. So instead of user waiting at the end of the input form and submitting the form, I am going to let user know immediately whether the username he/she is choosing is available or someone else has…

Introduction Here in Codeigniter jQuery AutoComplete example we will see how to do search AutoComplete using Codeigniter jQuery.  Autocomplete allows you to easily create autocomplete and auto-suggest boxes for text input fields. When you start a search on Google or other search engines, you can find the information you are looking for using search predictions. Search predictions are possible search…

Introduction I will show you how to upload multiple files using Codeigniter, AJAX and jQuery without page refresh. This multiple files upload tutorial example is very helpful to implement the upload functionality. In this example the files are selected using the browse button and files are uploaded to the uploads directory. Codeigniter controller stores files into the defined location and…

Introduction I will show you an example on Ajax file upload using Codeigniter jQuery without page refresh. This file upload tutorial example is very helpful to implement the upload functionality. In this example the file is selected using the browse button and file is uploaded to the uploads directory. Codeigniter controller stores the file into the specified location and returns response…

Introduction Here you will see how to create nested comments using Codeigniter AJAX MySQL. In my previous tutorial I have shown how to create Nested comment system in PHP, AJAX. Here I am going to show you how to do the same thing but using Codeigniter 3, MySQL and AJAX.

Introduction In this post we will see how to create voting or rating system using Codeigniter, MySQL and AJAX. We post tutorials, articles or blogs either to our own blog site or as a user to other sites. Sometimes we need to let user rate on our tutorials or articles or blogs so that we know how much that blog…