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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

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In this course, you'll explore the basic structure of a web application, and how a web browser interacts with a web server. You'll be introduced to the request/response cycle, including GET/POST/Redirect. You'll also gain an introductory understanding of Hypertext Markup Language (HTML), as well as the basic syntax and data structures of the PHP language, variables, logic, iteration, arrays, error handling, and superglobal variables, among other elements. An introduction to Cascading Style Sheets (CSS) will allow you to style markup for webpages. Lastly, you'll gain the skills and knowledge to install and use an integrated PHP/MySQL environment like XAMPP or MAMP.


    PHP (Hypertext Preprocessor) is a server-side scripting language designed for web development. It was created in 1994 by Rasmus Lerdorf and is now maintained by The PHP Group. PHP is one of the most popular programming languages used for web development, powering many popular websites such as Facebook, Wikipedia, and WordPress. PHP is a dynamic language that allows developers to write code that can interact with databases, manipulate images, and create dynamic content. It is often used in combination with HTML, CSS, and JavaScript to create dynamic web pages and web applications.


    One of the key features of PHP is its ability to be embedded within HTML. This means that you can mix PHP code with HTML code in the same file, allowing you to create dynamic web pages that can display different content depending on the user's input or other factors. To embed PHP within HTML, you can use the php tags. Any code within these tags will be executed as PHP code by the server.

  • Section 3: BASIC DATA TYPES

    PHP supports several data types, which are used to store different kinds of values. Here's an overview of the main data types in PHP: Boolean: A Boolean represents a true or false value. In PHP, true and false are case-insensitive keywords that represent the Boolean values. Integer: An integer represents a whole number. In PHP, integers can be specified in decimal, hexadecimal, or octal notation. Float: A float represents a number with a decimal point. In PHP, floats are also known as double-precision numbers. String: A string represents a sequence of characters. In PHP, strings can be enclosed in single quotes (') or double quotes ("). Array: An array represents an ordered collection of values. In PHP, arrays can be indexed numerically or using strings. Object: An object represents an instance of a class. In PHP, objects are created using the new keyword and can contain properties and methods. NULL: NULL is a special data type that represents a variable with no value. Resource: A resource is a special data type that represents an external resource, such as a database connection or file handle. In addition to these basic data types, PHP also supports some more complex data structures, such as multidimensional arrays and objects with inheritance and interfaces.

  • Section 4: PHP CONSTANTS

    To define a constant in PHP, you can use the define() function. The define() function takes two arguments: the name of the constant, and its value