00110022 - Tutorials for Wordpress, MySQL, PHP, Java and many others. Easy and fun!

Install WordPress on Linux

You have your Linux server with Apache, PHP and MySQL setup?You just need to install WordPress now 🙂 First thing, let’s get the code: Let’s unpack it in the site’s…

Change active version of PHP

If you have seevral version of PHP installed, you can swith between them at anytime. For this example, I have have installed PHP 7.4 and PHP 8.0 To change between…

Install PHP 8 on Ubuntu 20.04

In Ubuntu 20.04 the standard version of PHP is 7.4. You might want to install the newest version which is 8.0 (as of April 2021). Before installing it, you need…

Connect Apache to Tomcat Using mod_jk

This short tutorial will explain how to connect Apache 2 to Tomcat 10 using mod_jk. First thing, let’s install mod_jk. Now let’s create the workers properties file: Here is a…

Install OpenJDK on Ubuntu 20.04

OpenJDK (Open Java Development Kit) is a free and open-source implementation of the Java Platform, Standard Edition (Java SE). Before you begin, let’s update the apt package index Now let’s…

Create a Virtual Host for Apache

After you instaled Apache you can start hosting websites. For each website (domain or subdomain) you will need a Virtual Host. This requires a file that conatins information for Apache…

Use Custom Fields to Find Related Posts

WordPress makes is easy to find posts in the same category, with the same tag, most recent posts and so on. You may want to refine what other posts you…

Find Post’s Primary Category with Yoast

When using the Yoast SEO plugin, you can define a Primary Category for each post. Here is the code to find it:

Manage Databases and Users in MySQL

You create users and databases with the CREATE command and delete them with the DROP command. Delete databases and users Create databases and users Change the user’s password Add permisions…