WEB SYSTEMS LESSON 6

PHP

is a server-side scripting language designed specifically for the

web.

PERSONAL HOME PAGE

WHAT IS THE TERM OF PHP IN THE PAST

PHP HYPERTEXT PREPROCESSOR

WHAT IS THE TERM OF PHP  NOW

$_SERVER

a super global variable that holds information

about the header, paths, and script location and other

information.

$_POST

a super global variable that collects data from the

form after submitting an HTML form.

$_GET

a super global variable that also collects data from the

form after submitting an HTML form. The data is passed

through the URL. It can also collect data from the URL.

$_FILES

a super global variable associates a double

dimension array keeps all information related to the uploaded

file.

$_SESSION

this super global variable associates with session

variables. This variable can be access during lifetime of a

session, which means that is value remain as long as the user is

using the system.

ARRAY

stores multiple values in one singe variable.

TWO-DIMENSIONAL ARRAY

is an arrays of arrays.

OPERATORS

are the mathematical, string, comparison, and logical

commands such as plus, minus, multiply and divide.

LOGICAL OPERATORS

are used to combine conditional statements.

INCLUDE_ONCE

includes and evaluates the specified

file during the execution of the script. This is a behavior similar to

the include statement, with the only difference being that if the

code from a file has already been included, it will not be included

again,