In JavaScript, showModalDialog()  method creates a simple modaldialog box which is a simple html page but when a modal dialog opens, user can't switch to another page until it closes the modal dialog box.Syntax:  window.showModalDialog( url, arguments, feature options); Where url is the URL of page which is to be opened in modal window and argumentsare those arguments which we are passing to the modal window and featureoptionsare the attributes set for the modal window.Description of code:Suppose we have an image file and we want to view that particular image fileinto a separat...

Next are some tips for writing highly efficient PHP codes. They are described below:0. Use single quote to replace double quote, this will be better since PHP will serach for variables in double quoted strings. Note, only echo can do this;1. If we can define methods of a class as static, then do it. It will increase access speed by 4 times;2. $row["id"] is 7 times faster than $row[id];3. echo is faster than print, and also use echo's multiple parameter format such as echo $str1,$str2 instead of echo $str1.$str2;4. When using for loop, make sure the maximum number of executions instead of calcu...

Copy and paste the following code blocks into your site and replace '<url>' with the link you want to Share.Text link:<script>function fbs_click() {u=location.href;t=document.title;window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(u)+'&t='+encodeURIComponent(t),'sharer','toolbar=0,status=0,width=626,height=436');return false;}</script><a rel="nofollow" href="http://www.facebook.com/share.php?u=<;url>" onclick="return fbs_click()" target="_blank">Share on Facebook</a>Small icon and text:<script>function fbs_click() {u=location.h...

This article describes the steps to create a custom PHP extension DLL for the Windows platform. The Zend API documentation that comes with PHP 5 on Windows (see php_manual_en.chm) does a good job explaining how to write extension methods, parse method parameters, and return values. But there is not currently a good step-by-step tutorial on how to get your first extension project up and running on Windows. The aim of this article is to fill that gap.PrerequisitesVisual Studio 2005You can alternately use the free Visual C++ Express Edition or the VC++ 8 compiler in the Windows SDK v6.0 if youâ�...

PHP's meaning of overloading is different than Java's. In PHP, overloading means that you are able to add object members at runtime, by implementing some of the __magic methods, like __get, __set, __call, __callStatic. You load objects with new members. Overloading in PHP provides means to dynamically "create" properties and methods. These dynamic entities are processed via magic methods one can establish in a class for various action types.Some example:class Foo{    public function __call($method, $args)    {        echo "Called method $method";&n...

现在主流的网站开发语言无外乎asp、php、asp.net、jsp等。网页从开始简单的hmtl到复杂的服务语言，走过了10多个年头，各种技术层出不穷，单个的主流技术也在不断翻新的版本，现在分析下各种语言的区别、优势、劣势、...

We've always put a heavy emphasis on performance at Stack Overflow and Stack Exchange. Not just because we're performance wonks (guilty!), but because we think speed is a competitive advantage. There's plenty of experimental data proving that the slower your website loads and displays, the less people will use it.[Google found that] the page with 10 results took 0.4 seconds to generate. The page with 30 results took 0.9 seconds. Half a second delay caused a 20% drop in traffic. Half a second delay killed user satisfaction.In A/B tests, [Amazon] tried delaying the page in increments of 100 mill...

With the release of the iPad, HTML5 technology has recently come into the spotlight.  The format that will likely kill Adobe’s Flash is a lot of fun to use, but we’ve  not seen much of it yet.The good news is that you don’t have to wait until the iPad is in your hands to see what HTML5 can do.  If you have a compatible browser, there are already a wealth of sites that show off the capabilities.First, make sure that you have a browser that is capable of rendering HTML5 content. At the moment, Google’s Chrome is king in this department.  So for the...