PHP
  What is PHP?   PHP is an acronym for "PHP: Hypertext Preprocessor"  PHP is a widely-used, open source scripting language  PHP scripts are executed on the server  PHP is free to download and use.     What Can PHP Do?   PHP can generate dynamic page content  PHP can create, open, read, write, delete, and close files on the server  PHP can collect form data  PHP can send and receive cookies  PHP can add, delete, modify data in your database  PHP can be used to control user-access  PHP can encrypt data     PHP Data Types   Variables can store data of different types, and different data types can do different things.   PHP supports the following data types:   String  = ( A string is a sequence of characters, like "Hello world!". )  Integer   = ( An integer data type is a non-decimal number between -2,147,483,648 and 2,147,483,647.)  Float  =  (floating point numbers - also called double)  = (A float (floating point number) is a number with a decimal point or a number i...
 
