In PHP, to access session variable stored in $_SESSION array the page must have session_start() method invoked earlier, but when it is called multiple called, it throws PHP Notice "session already started".
File upload is trivial to any web application. Prior to Java Servlet specification 3.0 upload to server required Apache Commons. Now its just a matter of writing a just any other file.
Enhance your user's reading experience on your website by highlighting only the portion of text user selected. Fokus is a simple script that do this simple job in less than 3KB of code.
With CSS3 every aspect of the Webpage can be can customized. This CSS code snippet will change the highlight color of the select text both its background and foreground color.
Websites needs to be responsive now a days. Responsive does not only mean there structure adapt itself according to the device but the font should also be scaled accordingly.