If I'm going to learn programming first time, How i should start?
I don't know programming yet but I'm good at XHTML and CSS. my main aim is to learn first Javascript than second PHP. after having good command in Javascript I'll move to PHP.
all these i want to learn to get good command in all areas of Wordpress design and Development.
Although i can use basic javascript, jquery, PHP scripts in my projects but know i want to learn programming concept and want to get good knowledge.
I believe the language depends on your area of concentration.
Considering your background, I am going to assume you wish to pursue web development. I might be biased, but I think PHP is a good language to learn. However, I will suggest learning JavaScript and jQuery
Also, take a look at this question for which concepts to learn and in which order,
Algorithmical thinking is the most important thing. I'd start with C language, learn to work with memory - most of high level languages are based on C (C++, Java, C#). Once you can "think" as computer, you can start programming serious things. If you like web, go with html,css,php,javacsript :)
GoodLuck
Programming is doing it. That's what I have learned from my experience. I read a lot of books but nothing remained in my mind until I dived into actually writing the code.
Here are two good resources, however:
The answer probably depends on how comfortable you are teaching yourself something and working through things on your own. If you are self-motivated, then get a good book on JavaScript and actually work through the examples. Don't just read and assume you understand, but try. Consider websites you already like and attempt to copy their code. As a reference, the book JavaScript, the Definitive Guide is unbeatable.
If you would prefer some structure, colleges and universities, especially community colleges in the US, often offer programming courses as part of career development programs. These programs can provide you an introduction to familiarize yourself with how to think in "computer."
Well, you can certainly go through books, etc but depending on your personality, you might be better off jumping feet first.
I personally would recommend that you try something smaller scale that can give you appreciable results fast. Other programmers will scoff at this idea...but you might want to start off in Excel's macro language, VBA. Many will laugh at it, saying it's not a real language, but it's really how you go about it. You can learn a lot by recording macros and reviewing the code and trying to modifying the code to make it more efficient. You can see results fast and it gives you a chance of getting hooked. Learn about Arrays, references, variable handling, etc. Don't depend on this language...though it and VB can be powerful in it's own right, you want to get yourself to C# as quickly as possible Use VBA as brief stepping stone.
Then take a "structured programming" course and try applying what you learn. Then learn C. You can see where the similarities are in the concept of programming between 2 the two languages.
I would start with http://www.python.org/. Python is not web related, but is easy to learn, adds discipline and gives you good basics.
You might also want to think about learning PHP using a framework like CodeIgniter, CakePHP, etc.
The frameworks help address some of the more mundane work (which sometimes represents the more difficult stuff for newbies) to prevent you from reinventing the wheel.
Personally, I'm biased towards CodeIgniter, because it has a very shallow learning curve and the documentation is top-notch. The other frameworks are also very good, but may be more intimidating to a budding developer.
As Anthony mentioned, I would learn javascript first and then move into jQuery. jQuery UI elements do have a lot of great eye candy but learning jQuery also enforces and teaches some of the finer elements of javascript and it is hard to imagine javascript now without using the $ operator.
PHP is a great flexible and easy language to get working with as well since it is open source and integrates well into javascript.
I enjoy VB.NET and would even venture to say that C# might be your best option if you are looking to make a career out of programming as it seems to be where a lot of growth and hirings are taking place at least from my recent job searching and it would also teach true object oriented programming and perhaps make any other language much more understandable. Using Visual Studio does help alot in the early going with "intellisense" (Microsoft's name for a dropdown which prompts you for all available options while coding).
Nonetheless, I would definitely start with client-side javascript and then move to either server-side language.
Just my two cents.
If you want to learn javascript programming, I would say you go for mootools instead of jQuery. Mootools has a stronger javascript api and can be used more moar serious tasks than processing a HTML DOM. See http://jqueryvsmootools.com/ for details
For server side, learn ruby. Benefit being you can deploy your application to ruby as well as java/.net servers (using jruby, ironruby)