Filtering Wordpress Categories Using an Undocumented Hook

In this article, we will briefly cover Wordpress hooks and use an undocumented one in order to manipulate category listings. After some further digging, while it is not listed on the Wordpress filter list, it appears that this “undocumented hook” is mentioned on the get_terms() function reference. So, we’ll call this a somewhat undocumented hook. Anybody who knows me knows that I love Wordpress, if perhaps not more than any man should love a collection of code. I...

Guestbook tutorial in 3 easy steps

Step #1: creating the database and table. First of all you need to create a database, the process of doing so is fairly simple. To create a database, you will need to use a database management tool. I personally recommend using phpMyAdmin – it is one of the most popular database management tools out there. Local servers: If you are using an web server pack (i.e. xampp), it will most likely be here: http://127.0.0.1/phpmyadmin/ If not, you will have to install it manually. You can...

Simple page hit counter

Part #1: The concept. The concept of making a page hit counter for your website is very simple. It will be based on a text file which will contain a number of page hits. This number will be constantly increased by 1 on each load of the page. This counter will record every single hit, so keep in mind that the number it shows is not the actual number of visitors, but the number of times the main page has been loaded. The first PHP function (file_get_contents()) is used to read data from a...

How to write Shorthand PHP if and else assignments

What you don’t hear as a beginner When you are learning a scripting language such as PHP you will get the basics of assignment, evaluating and comparison operators such as == <= and != (equal, less than or equal, not equal). They are all you need to start writing code that can vary it’s behaviour according to what inputs it is given. Before long though you will want quicker ways of doing things. In this blog post I’m going to start with the long way of doing...

Working with RESTful Services in CodeIgniter

Assumptions You have a web server set up, locally or online and known how to manage files on it. You have read a few of the CodeIgniter from Scratch tutorials. You know how to set up CodeIgniter. You know a little about RESTful services. This tutorial is broken down into two parts. We will start by learning how to create a RESTful service, then further down, we will learn how to interact with it in a few different ways. Part 1 – Creating a RESTful API Step 1: Setting up the...

Filtering Wordpress Categories Using an Undocumented Hook

In this article, we will briefly cover Wordpress hooks and use an undocumented one in order to manipulate category listings. After some further digging, while it is not listed on the Wordpress filter list, it appears that this “undocumented hook” is mentioned on the get_terms() function reference. So, we’ll call this a somewhat undocumented hook. Anybody who knows me knows that I love Wordpress, if perhaps not more than any man should love a collection of code. I...

Building a Simple Monthly Calendar

In this tutorial we are going to learn how to build a simple calendar in PHP. You have seen many of those calendar date pickers mostly in Javascript. This PHP based one has a slightly different purpose - instead of populating an input field, it outputs links for the different dates and can be used for example as a monthly archive in a dynamic DB-driven site. We will build this calendar following good coding practices and keeping the login in one PHP file and the presentation in one...

Create a KVM-based virtual server in 3 steps

The Linux Kernel-based Virtual Machine (KVM) is free, open source virtualization software for Linux based on the Intel VT-X and AMD-V hardware virtualization extensions and a modified version of QEMU (work is underway to get the required changes upstream). KVM—in the form of kvm.ko, a loadable kernel module that provides the core virtualization infrastructure and processor-specific modules kvm-intel.ko...

Location-aware search with Apache Lucene and Solr

Location, location, location! Just as location is king in real estate, search plus location awareness can yield significant dividends in helping users effectively and efficiently find information. For instance, if you are a business-directory provider (such as a "Yellow Pages" site), when a user searches for a plumber, the site should return results for plumbers near the user's home. If you run a tourism site, you might want to allow travelers to search for places of interest near their...

Using Polylines

  Polylines Polylines draw lines similar to the line command we used in lesson 2, but are a lot more powerful. Let's start by drawing the same plot of land we drew in lesson 2, but this type using polylines. The polyline command is situated on the 'draw' toolbar. 1) Choose the polyline command 2) For a start point, enter 50,50 3) ...