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Introduction to PHP

Introduction to php:


PHP stands for
Hypertext Preprocessor.
Other Names : Personal Home Page, Professional Home Page Is a server side scripting language.
Capable of generating the HTML pages HTML generates the web page with the static text and images.
However the need evolved for dynamic web based application, mostly involving database usage.

Why world need php:
There are number of server side scripting available like ASP, SSJS, JSP…..
PHP involves
simplicity in scripting (..generally using the database)
platform independence.
PHP is
primarily designed for web applications
well optimized for the response times needed for web applications
Is an open source.

Data types of php:
Three basic data types
Integer
Double
String
More data types
Array
Object
PHP is an untyped language
variables type can change on the fly.

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