Introduction Here in this tutorial example, I will show you how to download large file in PHP program. Generally, when you download a file, your file is stored into file system or you load it into memory as a byte array. This is not a problem when you deal with a small file but when…

Posted in File Download PHP

PHP Large File Download in Chunks

Introduction In this example, I am going to discuss about how to work with Python flask caching. Flask is a Python based light-weight web frameworks. Flask framework provides an extension called Flask-Caching that adds caching supports for various backends to any flask applications. You can also develop your own caching system by extending the flask_caching.backends.base.BaseCache…

Posted in Flask MySQL

Python Flask Cache in Web Applications

Introduction In this shell programming example, I am going to show you how to delete backup files automatically using shell script cron job. So, I will create a shell script in Unix programming and setup a cron job to automate the delete process. This automatic job will save your manual efforts of deleting files from…

Posted in Unix

Auto Delete Backup Files Using Shell Script Cron Job

Introduction In this tutorial, I will discuss about how to work with CodeIgniter 4 filters. These filters are controller filters. Controller Filters allow you to perform actions either before or after the controllers execute. Unlike events, you can choose the specific URIs in which the filters will be applied to. Incoming filters may modify the…

Posted in Codeigniter MySQL

CodeIgniter 4 Filters Example

Introduction The tutorial, CodeIgniter 4 Generate PDF Report will show you how to fetch data from MySQL database and generate PDF document using CodeIgniter 4 framework. Here I am going to use how to use TCPDF third party library with CodeIgniter 4 framework to put data into pdf document. CodeIgniter framework does not provide any…

Posted in Codeigniter MySQL

CodeIgniter 4 Generate PDF Report

Introduction The tutorial, CodeIgniter 4 Generate HTML Table will show you how to fetch data from MySQL database and generate HTML data using CodeIgniter 4 framework. You generally iterate through a list of records and put them into an HTML table for displaying to end users. But here I am going to show you how…

Posted in Codeigniter MySQL

CodeIgniter 4 Generate HTML Table Data

Introduction Here I am going to show you how to setup auto backup web site files using shell script cron job. In the world of web, it is recommended that you take care of your web site files by taking backups of them frequently. If anything goes wrong so that you can take an appropriate…

Posted in Unix

Cron Job Shell Script To Auto Backup Web Site Files

Introduction It is necessary to prevent malicious code injection in your application and one of the injections is SQL injection. Here I am going to show you how to prevent SQL injections in CodeIgniter 4 based applications. A SQL injection attack consists of insertion of a SQL statement into your application via user input data….

Posted in Codeigniter MySQL

How To Prevent SQL Injections In CodeIgniter 4

Introduction This tutorial will show you how to run PHP web applications without external server. So, you don’t need to use external server when you are developing or building your PHP based web applications in your development or local environment. I will show you here both how to run standalone PHP file and PHP web…

Posted in MySQL PHP

Run PHP Web Applications Without External Server

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…

Posted in AJAX Codeigniter jQuery MySQL

CodeIgniter 4 MySQL AJAX Nested Comment System

Introduction Codeigniter 4 MySQL 8 CRUD example will show you how you can build an application that performs CRUD operations using PHP based framework Codeigniter. CRUD is an acronym that stands for Create Read Update and Delete operations. It’s almost in every application that has user management system will need basic CRUD operations. Related Posts…

Posted in Codeigniter MySQL

CodeIgniter 4 MySQL 8 CRUD Example

Introduction You might have seen the error in CodeIgniter 4: The framework needs the following extension(s) installed and loaded: curl, intl. I will show you how here to solve this problem. This problem generally you will find in PHP based CodeIgniter 4 web framework in your environment when you try to run your application using…

Posted in Codeigniter MySQL

CodeIgniter 4 Error – framework needs extensions curl, intl