PHP Sessions overview

HTML and web servers by default don't keep track of information that was entered on a page when the client's browser loads another page. This makes doing anything that involves using the same information from a user on several pages difficult.

Sessions help solve this problem by maintaining data during a user's visit to your web site from page to page on your site. Each session can store many variables that are maintained throughout that session. The server keeps track of users' sessions by assigning them a unique session ID, generated by the server, when the session starts. This identifier is called the session identifier and must be sent to the server each time a page is requested once a session begins.

How to determine If a Path Is a Directory or a File in c#

The System.IO.Directory and System.IO.File classes both provide an Exists method. The Directory.Exists method returns true if a supplied relative or absolute path corresponds to an existing directory, even a shared folder with an UNC name. File.Exists returns true if the path
corresponds to an existing file.

What is  spyware

Spyware is software which is mostly written so its authors can find out about you, where you live, what you like to do on your computer, and where you go on the Web. Why do they care? Because they can make money from that information.

Some experts said that spyware is "uninvited, unwanted, stealthful, invasive, annoying, exploitive, and potentially privacy-compromising PC add-on software whose ongoing presence in millions of PCs worldwide benefits not the computer's owner and operator, but the interests of the publishers of this troubling new class of software.

BEA WebLogic Portal 9.2 provides enterprise portal infrastructure for streamlined portal development. This framework includes a rich, graphical environment for developing portals as well as browser-based assembly tools for business experts. WebLogic Portal simplifies the production and management of custom-fit portals, allowing you to leverage a shared services environment to roll out changes with minimal complexity and effort.

Wha t is the spam?

Spam is the Internet version of unsolicited telemarketing phone calls. This bulk e-mail, or junk mail, arrives day and night in your mail program and can cause your e-mail program to clog.

Spam wastes time, clogs mail servers, and is very difficult to get rid of. Most mailboxes today are constantly flooded with SPAM - unwanted advertising of any kind. Today more than 50% of all mails worldwide are spam mails.