yensdesign – Tutorials, Web Design and Coding

Today nobody really questions benefits of using source level debuggers for any language including PHP – debugger is simply a tool, necessity in everyday programmers work. However, it is interesting to note that code validating tools are much less known and it is those tools that are very valuable addition to debuggers in code development.

Traditionally, in compiled languages, certain part of code validation (type checking, checking for non-initialized variables) are usually taken by compiler, but besides compiler there are also external tools used to conduct this task (for example checkstyle for Java). This article deals with use of one of those tools (Codenizer) during development of PHP applications.

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Hi guys and welcome to a new tutorial of yensdesign.com! Some of you ask us about the possibility of create a tutorial about how to validate forms in server side (using PHP). So i wrote a tutorial about it, adding some interesting features with jQuery:

We are going to learn how to validate your forms using PHP and jQuery in both sides: client side (using javascript with jQuery) and server side (using PHP). It will be interesting to see how to use regular expressions to validate different kind of e-mails, passwords and more.

As always, here you have a preview of what we are going to do:

You can try the living example before continue reading the tutorial. Remember that if you want to try the server side, you need to disable javascript in your web browser!

Tested in: Firefox, Internet Explorer 6 & 7, Opera, Safari & Chrome.

Let’s learn guys!

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Continuing with the tutorials about AJAX and jQuery we will create a stunning and dynamic shoutbox based in PHP and AJAX (using jQuery).

We will learn how to create a dynamic ajax based shoutbox with jQuery from scratch. It will be very interesting to know how to use the ajax function of jQuery and how it can be used to insert and recover data from a MySQL database via PHP in a way asynchronous.

Here you have a preview image:

You can try the living example before continue reading the tutorial.

Tested in: Firefox, Internet Explorer 6 (bad display of PNG icons, IE bug) & 7, Opera, Safari & Chrome.

Come on guys, let’s dive into the tutorial!

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If you are very forgetful as I am and sometimes when you are “in the flow” and you cann’t remember a javascript function, a CSS property you know, it can be very helpful take your cheat sheet and remember it with a simple glance. You can read your desired cheat sheet in your screen or maybe just print it as a lot of people used to do, with the time you will find it faster and faster because you know the specific area where you must look to find that CSS property that you forgot (remember that visual memory it’s very powerful!).

You can download the Full Cheat sheets pack for Webmasters or download one by one the cheat sheets:

• Html Cheat Sheet cheat sheet
• Html Character Entities cheat sheet
• CSS cheat sheet
• Javascript cheat sheet
• jQuery cheat sheet
• Php cheat sheet
• MySQL cheat sheet

I hope it be useful for those forgetful heads

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Nowadays, the code debugger is a tool that has almost all programing enviroments which allows you to watch the internal work of your applications and finding errors at run time for a easy way. The trouble is when you are working in a client-server architecture model, because from where you send the request (client) can not access the code hosted on the server.

To PHP exists any debuggers that require an installation in the server part, that can not always like you. However you can find useful tools that can help you to make this task without to be debugger exactly (without interrupted point or execution step by step…).

One of this tools is FirePHP:

FirePHP is a Mozilla Firefox complement that merges with Firebug and allows you to watch the outputs sent from PHP code in the console, so, you can watch the variables values or create a log about that is happened in your scripts without use the upset “echo” that interferes with you HTML.

The way FirePHP works is very easy, all the information that you want to view at run time is coded in JSON and sent in the headers of the response. When these headers arrives to the navigator, FirePHP detect it and to render the information in the Firebug console.

So relax, take a cup of tea and let’s begin this lesson.

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