PHP is a server side scripting language used in web development to cerate dynamic web pages and can be embedded into HTML codes .The web server with php processor module interprets the code and geneate the web pages as per the given code .
PHP is a loosely typed language. It means you do not have to tell PHP which data type the variable is.PHP automatically converts the variable to the correct data type, depending on its value.
PHP stands for PHP Hypertext Preprocessor (A recursive acronym) .Earlier it was known as personnel home pages .
PHP is an open source software and its free to download and use .
It supports many databases like MySql,Oracle etc…
The Document Object Model (DOM) is a cross-platform and language-independent convention for representing and interacting with objects in HTML, XHTML and XML documents. Aspects of the DOM (such as its “Elements”) may be addressed and manipulated within the syntax of the programming language in use. The public interface of a DOM is specified in its application programming interface (API).
Following are the valid DOM save methods
Also called a permanent cookie, or a stored cookie, a cookie that is stored on a user s hard drive until it expires (persistent cookies are set with expiration dates) or until the user deletes the cookie.
Persistent cookies help websites remember your information and settings when you visit them in the future. This result in faster and more convenient access since, for example, you don’t have to login again.
Besides authentication, other website features made possible by persistent cookies include: language selection, theme selection, menu preferences, internal site bookmarks or favorites, among many others. On your first visit, the website is presented in default mode. During your visit, you select your preferences and these preferences are remembered, through the use of the persistent cookie, the next time you visit the site.
Magento employs the MySQL relational database management system, the PHP programming language, and elements of the Zend Framework. It applies the conventions of object-oriented programming and model-view-controller architecture. Magento also uses the entity–attribute–value model to store data.
AJAX is not a new programming language, but a new way to use existing standards.
AJAX is the art of exchanging data with a server, and updating parts of a web page – without reloading the whole page.