I want to design a mobile-based application that enable lectures set question through iphone.
I have had an website designed by PHP that lecture can set question through internet.
How to change and start?
Please tell me the detailed process.
Thank you very much.
If you are trying to design a mobile WEB application PHP should not be your first concern.
You will first need to understand the differences of styling web apps using CSS for mobile phones. There are some frameworks out there that can help you with this - I have never used one myself but a quick Google found http://www.phonegap.com/.
If you want to build actual native apps you will need to build them in that phones native language - iPhone is Objective-C, Android is a version of Java and so on.
Start by reading this:
http://webdesign.about.com/od/mobile/a/write-web-pages-for-the-iphone.htm
and then go directly to specifications.
Sencha Touch is also one of the more popular frameworks to build mobile apps with HTML5/Javascript. Of course you can use any server side scripting language like PHP with it.
Building native apps for mobile devices is much different than building a web-based application for use by a larger (compatible) audience. If you desire the look and feel of a native app for your project, then you might think about building and app for the most popular of mobile device operating systems, such as for the iPhone, Blackberry, Android and any other mobile devices you want to include. Think of the native app for the mobile device as the customer service counter at your local department store, its a friendly and welcoming interface put in place to get you to the information you seek, quickly and efficiently. That's pretty much what your native application would be doing, if constructed with portability in mind. Which means you build a customer service counter for all different devices, while the PHP web-based application would become the tie in for all these devices onto one main source of information, your web server.
There are many ways to build both web-apps and mobile-apps, and even more ways to make them all interoperable. How you build the entire system from the floor up will definitely have an impact on the scalability, administration and interoperability and overall usability of your application.
Regardless of the avenue you plan to take in the development of your application, the core question must be answered. What purpose does this application serve or what need does it meet? By answering this simple question, your answer will present itself, as to what tools to use in the development of your application.
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I want to delve in to mobile applications, specifically Android apps (I am an Android fanboy). My web application is a content based site; built with PHP/MySQL and served with a lot of HTML5, CSS3 and JQuery.
What would be the best starting point and direction to take to begin development of a mobile application? I've seen a couple of videos on PhoneGap and it seems very interesting with its standards-based cross-platform approach. Is that a good way to go?
My basic intend is to have an application that can load content from my site (served to the app probably as JSON or XML) which the application can render in native UI (or make use of local storage etc. that a simple web content frame won't do). I guess it would be a glorified mobile site, but I want it to me slightly more with the ability to save and render content for if internet is not available.
PhoneGap does a nice job of bridging native APIs so they are available to your JavaScript. What you really need to consider though is the look, feel, and performance of the HTML/CSS/JavaScript you run on top of PhoneGap.
I have recently started building an app with JQueryMobile. The look and feel is really nice, and I was able to build something very rapidly. However, page transitions are very blinky/choppy to the point where I don't think its acceptable. This is really a problem with Android's browser performance and not JQuery Moble.
Sencha Touch seems to have animations and transitions that are a bit smoother, but it has a steeper learning curve.
Another option is to create an application which is a hybrid, containing some PhoneGap based Activities and some purely native Activities.
Since you are already familiar with web development, I would suggest doing a quick sprint with PhoneGap and Sencha Touch. If it looks promising, stick with it. If it doesn't, abandon it for a native app.
If you want to use native UI & controls, then Phonegap will not help you. It essentially wraps HTML/CSS/JS in an app & provide JS API's for native device features. It does not help you create native UI & controls.
You can directly code in native Java or use Titanium if you want to code in JS and build portable apps with native UI.
If you are only going to be targeting Android, then I would suggest avaioding PhoneGap or other cross platform SDK's. If you're comfortable with Java or are willing to learn, go with the Android SDK tools and Eclipse.
I have found that working with JSON is extremely simple on Android, and dealing with xml is not that much harder.
If you want to stay away from coding in Java, you could simply use what you have already as an HTML5 app, and create a new mobile CSS to reflow the look and layout of your app. That way, you can still use all the HTML and javascript you are currently using, and get your info from the same server...
In my experience though, Android web app are very slow... unfortunately (and hopefully Chrome will fix this) android browser is very bad with javascript... very slow.
Which technologies I need to learn for developing Online Chat Room with voice/video support?
Presently I know Core PHP/MySql and DHTML.
If you want to do a chat that would scale, you need to learn how to write an event handled application, there is a lot of framework to build such application, a short list
node.js
python twisted
etc...
This tool would permit you to use the comet style of ajax call.
Sadly, I don't think there is any event driven web server/framework for PHP, so you would probably have to learn other language.
Websockets do suit the job best. That means you ought to study some javascript and a serverside technology of your choice. http://dev.w3.org/html5/websockets/
There is a free API called TokBox that I've used for custom video chat applications in the past:
http://www.tokbox.com/
You'll have to build a back end for storing and passing chat sessions, but it has a very robust javascript library that lets you control the number of participants, the position and size of screens, audio controls, etc etc etc... and it has developer libraries in php and several other languages that help you connect to their servers to back-end controls (including downloading and archiving chats).
It's well documented, and I was able to get a fairly customized system up in about a day.
I want to develop an web application which i have Developed in c# previously.
Now I want to make the same banking application online. So please suggest me the process or Framework i should use to fulfill above.
I am new in web development but i have knowledge of JavaScript, PHP, CSS, HTML and more required for design and coding.
But i don't know how to use this knowledge please help me. Up-till now i have created UI for the project but i don't know where the code should reside how to call them etc.
Help will be Appreciated.
If you've already developed this in C# you can keep with C#. You can create C# web applications. I do believe, in fact, that this site is built using C#. :-)
If you want to learn another web language or technologies, there are plenty of tutorials, books, videos, and classes out there to help you.
Search around the web about developing web applications in .net. there should be plenty of articles covering that area. But basicly, i would say you should go for a Form based Web Application. That way you can make most use of the c# skills you already have. Read about that and the css html and javascript skills should give you a nice application. The deployment using IIS servers etc, you might need some help with if you dont have any experience with that. Maybe a nice article on the web could guide you through that as well.
Hope this helps!
Lookat sencha website,It has many products aimed on fast building web app, and you don't need to learn a lot about CSS,HTML,JS.
I would recommend you to try using Python(Django)or PHP(but I prefer the first one) on the server side + ExtJS for the UI(with ExtJS you can easily create great UIs).. But I don't really think that it's a good decision for business. For getting started - it's great but for business projects - I'm not sure..
As you already developed you application in C# then its better to use ASP.Net, so you can use your C# code as well, and if you don't have much knowledge in asp.net its really very easy to learn also, for that you have to go through some good books and some sites like asp.net etc
If you are already familiar with desktop development, you should take a look at Agile Toolkit, which is a web-based framework inspired by desktop development.
It is very helpful when you need a to produce a lot of inexpensive UI specifically for data management.
I'm trying to develop an application server that will deliver content to a core group of websites, as well as provide third party services to other websites that also want to use this content. The app server will be hosting web services for these core + 3rd party websites. Authentication and all that comes into play. The data itself will consist of millions of records.
These records will come from a variety of sources: APIs, RSS feeds, REST services, etc. This app server will essentially collect this data on a routine basis, and update the database with this new information. This data will then be shared via some sort of web service (most likely REST) to the core websites and 3rd party websites.
FYI, I'm making a distinction between core sites and 3rd party websites because there will be different access levels, i.e. a core website will have more access than a 3rd party website.
All that said, I'm trying to make the best decision on which framework to use. At the risk of losing all credibility, I currently have a ton of this code written as a wordpress plugin. What started as a one-time site evolved into several sites, and some homebrew hacking to make my outdated infrastructure work across multiple sites.
I'm looking to migrate all of this to a new application server, with a solid framework.
Since everything is written in PHP, obviously I'm tempted to do the migration in PHP. However, I'm considering Python because of its powerful ability to manipulate data. I don't know if it's worth the hassle, though, of rewriting a lot of code in Python.
Could anyone give me some tips on what I should do? I'm really looking to clean up a big mess more than anything, and would like a framework to encourage some solid programming conventions.
All of the frameworks that you mentioned are capable. Pick one in the language that you know the best and use that.
I agree with #gpojd's opinion. All of them that you mentioned are fully capable.
However, it looks like they are too powerful for your job. Because they are all full-stack MVC-like web frameworks shipped with ORM, Template engine, URL redirections and i18n supports.
So, I suggest you to use more lighter/thinner frameworks. and if you don't mind choosing any programming languages, please check out the below frameworks.
Python
Werkzeug : http://werkzeug.pocoo.org/
Javascript
node.js : http://nodejs.org/
with Stylus framework : http://expressjs.com/
I've been asked by a client to make an online tracking system for work we do for them (we will be typesetting a high volume of books for this client). Basically, it would be a database showing the books we are currently working on, with information on what stage of the project we are at, and estimated completion dates. The only people with access to this system would be us and employees of the client company.
I've worked in MySQL and PHP before; should I just go with what I know? This answer to a similar question suggests using Google Apps. I don't have any experience with Python, but happy to learn...
You're the only one using this therefore I see no reason to use Google Apps. I'm usually weary of people suggesting Google Apps, Amazon's s3, Microsoft Azure, etc. Also, you're going to be using a radically different data store. Unless you want an excuse to learn to do Google Apps and Python, I'd say go with MySQL+PHP and be done with it! In short, there aren't really any technical reasons for you to go with Google Apps here.
Sticking with what you know is always a good solution when dealing with delivering products to customers. No customer likes to be your guinea pig while you learn a new technology, although that's often how it's done. If you are comfortable with MySQL and PHP then stick with it if it satisfies your requirements, if it seems not to then look for libraries, frameworks and components written in PHP that might help you reach that goal. If you still have difficulties (unlikely given the scope of the project given) then ask questions here :) & search the web for solutions and patterns.
If all that fails and you can clearly solve your problem with another technology, then look at moving but make sure your customer is aware of how that's going to affect you timeframes.
When you've implemented this project and have some spare time, if there's a new direction you'd like to explore then use this project as your base and set to work without the stress of a deadline.
That's my 2p worth... good luck!
When developing a CRUD application such as this, you may be required to reinvent the wheel a little if starting from scratch. Many parts of your project are not unique to the project. E.g authentication, database access, form manipulation etc.
If getting things done is important to you it may be important to give your project a kick start and stop you wasting too much time.
Use a coding framework
Frameworks often have a lot of functionality ready for use straight out of the box.
Options may include Django, Ruby on Rails, Joomla, CakePHP, CodeIgniter.
Hack a tried and tested application
Open source projects are often quite easy to mould to your needs. Drupal and Joomla are CMS products which can be used in a wide variety of ways. If your book-tracking drupal module is any good, maybe you could go on to offer it as an open source plugin?
Use a currently available app in a new way
Your app seems to be tracking the status of items added to a database. How about using software designed for tracking other types of items. E.g. bug tracking software, project management to-do list software or customer relationship management software?
Well, as everyone has already said, if you already know PHP, that's got to be awfully tempting.
But it sounds simple enough that something like Django might save you a lot of time: its built-in admin interface could be used for the "update" side of the job, so all you'd need to template up is the "read" side, which is pretty easy.
I suggest you too look at Viravis.