PHP

Introduction   A function is a part of program which contains set of statements that can perform a desired task. A function can be defined with the function keyword followed by the function name and an optional set of parameters enclosed in parentheses.   A function definition may not occur before a function call. It […]

Array is a collection of heterogeneous elements. There are two types of arrays in PHP. First type of array is a normal one that contains integer keys (indexes) which can be found in any typical programming languages. The second type of arrays is an associative array, where the keys are strings. Associative arrays are also […]

This article explains about form processing in PHP. Users enter various data in a HTML form through different HTML controls. We will see how to process that data in a PHP script.   One of the applications of PHP is processing the data provided by the users in (X)HTML forms. PHP provides two implicit arrays […]

A video tutorial explaining the mechanism of type casting in PHP.

PHP provides four scalar types namely Boolean, integer, double and string and two compound types namely array and object and two special types namely resource and NULL.   PHP has a single integer type, named integer. This type is same as long type in C. The size of an integer type is generally the size […]

Constants are identifiers which are used to store values that cannot be changed once initialized.   A constant doesn’t begin with a dollar ($) sign. The convention for constants is, the name of a constant should always be written in uppercase.   We use the function define to create constants. Below example demonstrates creating and […]

A video tutorial on destroying variables and working with comments in PHP.

A variable is a named location in memory to store data temporarily. PHP is dynamically typed language. So, there is no need for mentioning the data type of a variable.   The type will be detected automatically based on the value assigned to the variable. A variable can be created as shown below: $var1 = […]

PHP scripts can be embedded in a (X)HTML document or written separately without any (X)HTML markup. In both cases, the file must be saved with the extension .php.   Creating PHP Script   Any PHP script (code) must be enclosed within the PHP tags which are represented using <?php (opening tag) and ?> (closing tag). […]

Watch this video tutorial to learn the process of installing WAMP server on Windows operating system.