www.devshed.com Tutorials

Build A Better Twitter Chat Client Than Chamillionaire
Tuesday evening, August 4th, the musician Chamillionaire launched a live, first showing video on his website along with a Twitter-based chat client. While the Twitter chat client worked from a data perspective, based on what the code showed it looks like most browsers would crash.

Enhancing a URL Handling Helper Class
Are you a PHP developer wishing to find an approachable guide that walks you through building different kinds of helper classes in PHP 5? Then look no further, because this group of articles may be the material that you really need.

Enhancing Dynamic Twitter Signature Images
In my last article we began putting together a solution that will allow us to display dynamic Twitter signature images in forum posts and emails. In this article well continue where we left off by adding the functions that will harness the power of GD to create the actual image.

Validating Boolean Values and Float Numbers with Filters
In this article, you'll learn some very useful ways to take advantage of the capabilities of the filter extension to validate Boolean values in arrays; we'll also show you how to validate float numbers.

Calling Methods Out of Object Scope
Theoretically defining the role of helper classes in PHP 5 (and other popular server-side scripting languages) is a pretty approachable process. As their name suggests, helper classes provide developers with a set of logically-grouped methods that allow them to easily perform certain repetitive tasks that are common to different web applications.

Dynamic Twitter Signature Images
Twitter is the latest and greatest craze in social networking sites. As such, many developers and businesses are using it as a marketing technique. Today were going to come up with a method for creating a dynamic signature image for forum posts and emails that will automatically load your Twitter feed and display your latest Twitter status.

Checking Boolean Values with Filters in PHP 5
Among the numerous libraries that come included by default with the PHP 5 distribution, theres one that has been overlooked by many developers. This is a shame, because it can be really useful for validating incoming data in a truly simple fashion.

Working with Regular Expressions with Filters
Among the enhancements that were introduced originally in PHP 5, theres one powerful extension that has been all but ignored by many programmers until now, quite possibly because they weren't aware of its existence.

Perl, Bit by Bit
When you program, you're usually doing it at some distance from the bits and bytes that your computer understands. There never seems to be a need to think about bits. But believe it or not, learning about bits can be to your advantage for certain programming purposes. Perl provides operators for working with bits that let you leverage this knowledge.

Developing a URL Handling Helper Class in PHP 5
In this third installment of a series on building helpers in PHP 5, I will provide you with the basic pointers for building a URL-handling helper class. The code examples, though simple, should serve to demonstrate how to create a helper that generates dynamic URLs.

MySQL User Account Management
The MySQL access control system enables you to create MySQL accounts and define what each account can do. Several types of privileges can be assigned to an account. They should be granted according to how the account is to be used.

Optimizing for Query Speed
Optimzing your queries can help them run more efficiently, which can save a significant amount of time. This article covers index optimization and index usage and discusses general principles that are useful for optimizing queries to run more efficiently.

Using PHP classes to navigate distributed whois databases
In this tutorial we will learn how to Using PHP classes to navigate distributed whois databases.

Using The Google Web APIs With PHP
This tutorial will show you how to Using The Google Web APIs With PHP .

Wap-Enabling a Website with PHP3
This short tutorial will do just that by giving you the basics of making your site WAP-enabled using PHP.

Creating a Mailing List Manager with PHP
This tutorial will guide you through building a complete mail list administration solution, capable of handling multiple lists. Suitable for small-medium sized lists (less than 500 names), flat files are used to store information for later retrieval. Many file access commands will be used and explained, and we'll cover how to send mail from a PHP script.

MySQL Table Joins
One of the great characteristics of SQL (Structured Query Language) is the fact that one can develop access and modify data across various tables. There are several benefits to this, including greater ease of manipulation, increased speed of access, and reduced data redundancy. In MySQL (as well as many other SQL languages), this is accomplished via the join command.

Perl 101 (Part 4) - Mind Games
This article teaches you how to use Perl to interact with files on your system, and also provides you with a quick crash course in various array functions.

Perl 101 (Part 5) - Sub-Zero Code
This Part 5 of the Perl 101 series introduces you to subroutines and teaches you how to structure your code for maximum reusability. Also included: return values, my() and local() constructs, and a marriage proposal.