PHP Basics - Part 6 :: Expressions–Part 3

  Equality Operators Equality operators (see Table below) , as the name suggest, are used to compare two values, testing for equivale...

PHP Basics - Part 6 :: Expressions – Part 2

Assignment Operators The assignment operators assign a data value to a variable . The simplest form of assignment operator just assign...

PHP Basics - Part 6 :: Expressions – Part 1

All expressions consist of at least one operand and one or more operators. A few examples follow: $a = 5; // assign integer value 5 to...

PHP Basics - Part 5 :: Constants

A constant is a value that cannot be modified throughout the execution of a program. Constants are particularly useful when working with ...

PHP Basics - Part 5 :: Variables Part 5 ::: Super Globals 2

Retrieving Information Stored Within Cookies The $_COOKIE superglobal stores information passed into the script through HTTP cookies. ...

PHP Basics - Part 5 :: Variable Part 4 ::: Super Globals 1

PHP’s Superglobal Variables PHP offers a number of useful predefined variables that are accessible from anywhere within the executing sc...

PHP Basics - Part 5 :: Variables Part 3 :: Scope 2

Function Parameters In PHP, as in many other programming languages, any function that accepts arguments must declare those arguments in ...

PHP Basics - Part 5 :: Variables Part 2 :: Scope 1

Variable Scope However you declare your variables (by value or by reference), you can declare them anywhere in a PHP script. The locat...

PHP Basics - Part 5 :: Variables Part 1 :: Declaration

Identifiers Identifier is a general term applied to variables, functions, and various other user-defined objects. There are several p...

PHP Basics - Part 4 :: continued

Converting Between Data Types Using Type Casting Converting values from one datatype to another is known as type casting. A variable ...

PHP Basics - Part 4 :: PHP’s Supported Data Types

A datatype is the generic name assigned to any data sharing a common set of characteristics. Common data types include Boolean, integer...

PHP Basics - Part 3 :: Outputting Data to the Browser

Of course, even the simplest of dynamic web sites will output data to the browser, and PHP offers several methods for doing so. Note...

PHP Basics - Part 2 :: Commenting PHP Code

Because documentation is such an important part of effective code creation and management, considerable effort has been put into devis...

PHP Basics - Part 1 :: Embedding PHP Code in Your Web Pages

One of PHP’s advantages is that you can embed PHP code directly alongside HTML. For the code to do anything, the page must be passed t...

PHP Basics

So far you have learnt about prerequisites for PHP to run on your computer, installation and configuration procedures (of PHP/Apache/IIS)...