Sunday, 14 August 2016

PHP & MYSQL

PHP is a server scripting language and a powerful tool for making dynamic and interactive web pages. PHP is  a widely - used, free and efficient alternative to competitors such as Microsoft's ASP.
  • 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
Basic PHP Syntax:
A PHP script can be placed anywhere in the document.

A PHP script starts with <?php and ends with ?>:
<?php
//php code goes here
?>
The default file extension for PHP files is ".php".
A PHP file normally contains HTML tags, and some PHP scripting code.
Below, we have an example of a simple PHP file, with a PHP script that uses a built-in PHP function "echo"  used to get output on a web page:
<html>
<body>
<h1>My first page</h1>
<?php
echo"Good Morning GPT Addanki";
?>
</body>
</html>

PHP supports the following data types:
  • String
  • Integer
  • Float (floating point numbers - also called double)
  • Boolean
  • Array
  • Object
  • NULL
  • Resource
With PHP  you can connect to and manipulate databases.
MySQL is the most popular database system used with PHP.
  • MySQL is a database system used on the web
  • MySQL is a database system that runs on a server
  • MySQL is ideal for both small and large applications
  • MySQL is very fast, reliable, and easy to use
  • MySQL uses standard SQL
PHP-AJAX

AJAX = Asynchronous JavaScript and XML.
AJAX is a technique for creating fast and dynamic web pages.
AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.
Classic web pages, (which do not use AJAX) must reload the entire page if the content should change.
Examples of applications using AJAX: Google Maps, Gmail, Youtube, and Facebook tabs.

AJAX FLOW CHART

AJAX

2 comments:

  1. IEEE Project Domain management in software engineering is distinct from traditional project deveopment in that software projects have a unique lifecycle process that requires multiple rounds of testing, updating, and faculty feedback. A IEEE Domain project Final Year Projects for CSE system development life cycle is essentially a phased project model that defines the organizational constraints of a large-scale systems project. The methods used in a IEEE DOmain Project systems development life cycle strategy Project Centers in India provide clearly defined phases of work to plan, design, test, deploy, and maintain information systems.


    This is enough for me. I want to write software that anyone can use, and virtually everyone who has an internet connected device with a screen can use apps written in JavaScript. JavaScript Training in Chennai JavaScript was used for little more than mouse hover animations and little calculations to make static websites feel more interactive. Let’s assume 90% of all websites using JavaScript use it in a trivial way. That still leaves 150 million substantial JavaScript Training in Chennai JavaScript applications.

    ReplyDelete
  2. It's very useful blog post with informative and insightful content and i had good experience with this information.I have gone through CRS Info Solutions Home which really nice. Learn more details About Us of CRS info solutions. Here you can see the Courses CRS Info Solutions full list. Find Student Registration page and register now. Go through Blog post of crs info solutions. I just read these Reviews of crs really great. You can now Contact Us of crs info solutions. You enroll for Pega Training at crs info solutions.

    ReplyDelete