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Web Programming
Web Programming is the category for programming for the Internet and World Wide Web. Q&A's include coding in technologies used for Browser, applet based applications, and more.
584 Questions
How does the program written in server side scripting language works?
Server side scripts start processing data generally when end user or client triggers some action. Server side looks for the request object sent by end user and processes it and presents the relevant data model.
For example a user wants to see his profile. He can click on the Show Profile button after Login. Once he click it a request object with two parameters Login Id and Profile is sent. The server side processes the request and separates the Login Id and Show Profile. It then ask the database or file to show profile associated with the login id.
There are auto-loading classes and triggers which activate on their own without user input also.
<form name=".." action="..." method="...."> and </form> Change .. with the name of the form. Change ... with the website you want it to go to once the form has been submitted. Change .... with the method so either get or post
What is the difference between xslt and xml?
XML is a language used to store data. XSLT is a language which is used to transform XML into other XML.
How can I convert RSS feed to Atom?
2RSS.com is offering a very easy to use Atom-to-RSS feed converter. For anyone reading blawg headlines in a newsreader that does not yet recognize the Atom syndication format, you can use 2RSS to convert the Atom feed to RSS. And you can do it all online in about two seconds time. Once the feed is converted, you simply cut and paste the converted feed URL into your reader and read away.
What is the benefit of opening a website in a new tab?
You don't need to open another window. It's easier to navigate and takes less memory in computer memory.
Does traffic exchange visits show as unique hits in website data logs?
Traffic exchange is the most important agenda to draw the unique visitors to the site and these work the same way as exchanging one object with the other with each object proving its usefulness.
Can we install on windows a web application developed in Php?
You can either install an Apache-based webserver that come prebuilt with PHP, such as XAMPP or the Zend Server CE (both free.) Or you can simply install PHP under you IIS server (the one bundled with most Windows Servers.) Specific directions require knowing your specific setup, but a Google search will get you plenty of good walkthroughs.
Also, there's an IIS extension called PHP on IIS 7 (available at php.iis.net) that I've heard really nice things about, but haven't had the need for yet.
There is one caveat here. Occasionally, the developers of a PHP application will have relied on the Linux file system or operating system for something, and the application itself won't run on Windows Servers (this is pretty rare, but happens.) If that's the case, then your best bet is likely to be either setting up a Linux server, or virtualizing a Linux box on your Windows server.
Try getting PHP onto your IIS first. It's waysimpler.
XML use has been increasing for the last decade or so and will probably continue to increase particularly because of mobile technology advancements such as smartphones and tablets.
How do you get automatically generated data from a database to a webpage?
This is a very broad question, since there are many types of data to retrieve from databases and even more ways to present them on a website.
Generically, the best way to accomplish this would be to use a server-side scripting language. PHP is a commonly used one, and is "easy" to learn.
Where is the acronynm of the Hypertext Transfer Protocol when in use?
The Hypertext Transfer Protocol is most often used when browing websites and webpages, in which case a URL often identifies where a client is and where they want to go next. This URL contains the acrononym for the Hypertext Transfer Protocol at the very beginning, stating to request information using this protocol.
How do you set up a website dedicated to answer animal questions?
Why would you want another site if WikiAnswers already has an entire category about Animal life questions? See http://wiki.answers.com/Q/FAQ/2885
If you want to put Animal life Q&A on your website you can use the RSS feed available for each of the categories under Animal life categories. Click on each of the category names and you will find the orange RSS button to the top right.
What is data transfer in XML format?
XML format works behind the scenes of many popular websites and computer programs. It runs a text data transfer interface.
How can you create a poll on Goodreads?
Go to the group you wish to create a poll in. Click "Polls" on the right hand side, click "Create a poll"
Is meta tags having closing tags?
Meta tags do not have closing tags in HTML. The following is perfectly valid HTML:
<meta http-equiv="content-language" content="en">
When you get into XHTML, you'll need to close the tag but by definition meta tags are self-closing. So the correct way to close the meta tag would be by adding a forward slash just before the closing bracket, like so:
<meta http-equiv="content-language" content="en" />
How many XML Schema languages exist?
Currently, twelve different XML Schema languages exist. All twelve languages are used exclusively in XML Schema, which is a special kind of XML document. XML documents are documents formatted in a way that allows both humans and machines to understand easily.
What are the advantages and disadvantages of ISAPI?
The advantages of using ISAPI is that ISAPI extensions processes are tha same as ASP or Active Server Pages but they are much more quicker in communicating because of the compiler code. If you compare them to CGI, ISAPI processes every request through isolated threads and synchronized work items instead of building unique process for every request. This helps it make more resourceful use of systems.
There are drawbacks to ISAPI also. The interface is not supported by the associated services as is the case with ASP and COM and some of the functionality need to be developed manually in order to allow it for session state maintainance. Hope this helps.
Is a form of high blood pressure. When the systolic pressure exceeds 140mmhg and the diastolic exceeds 90mmhg. -------------------------------------------------------------------------------------------------------------- it really just means High Blood presure. :) Its not a form of High Blood presure, but it IS High blood presure.
xml stands for extensible markup language, xml is a markup language that is used to transfer data / information. Dtd stands for document type definitionand dtd is used to define the legal building blocks of an XML document.
Why are my http calls turning into https?
HTTP is short for Hyper text transfer protocol. HTTPs is short for hyper text transfer protocol (security). So when ever you are using a secured site like facebook or twitter HTTP turns to HTTPs.
Easy. Go to My Account and click Downgrade your account to HTML mode.
Why do web browsers make separate requests for every image on a web page?
The answer has to do with the way content is interpreted by the browser.
Simple answer:
The HTML content of the page is stored as text. Images are easily stored as separate binary files. The browser is software that takes code and process it to display a more human friendly version on screen. As the browser finds a reference to an image in the HTML code it downloads it, then places it in the page per the HTML instructions.
Longer answer:
To make it easier for web programmers to design sites, the HTML code of a webpage is written in plain language, or text. To use other content on the same page, lines of code are written that reference other files. since they are text files, they must be converted to and from binary to transmit them over the internet.
Images have a level of compression or data structure applied to them, so they are more easily stored as binary files. there is no translation that occurs as they are transmitted online.
Computers run through code character by character, line by line and run functions when certain instructions are read. Once the browser sees an tag it knows the current page is referencing an image so it downloads it.
There are two reason I can that of why images are transmitted as separate requests:
* Images can be stored on different web servers, so sending one large binary stream would require one server to assemble all of the data then transmit it to the user (quite a waste to transmit the same file data twice.)
* Because images can be in different formats, using different compressions (jpeg, gif, png). Each image is transmitted separately so as not to cause problems. Addendum:
HTTP/1.1 protocol allows a browser to download all items in the same connection (so long as the connection is to the same server). This means at connection level there is only one request but at protocol level there are still multiple requests being passed through the one connexion.
Maybe you do, maybe you don't. In your web development toolbox, you may have RoR, PHP, Python, etc. No one can do most jobs any better than another, its upto you which you want to use.
white spaces is allowed in xml but not before the xml declaration.
white space before the xml declaration is interpreted as a processing instruction.
