PHP-Hypertext
preprocessor
•It is an open source
scripting language
•PHP scripts are
executed on the server
PHP Files:
•PHP files can contain
text, HTML, CSS, JavaScript, and PHP code
•PHP code are executed
on the server, and the result is returned to the browser as plain HTML
•PHP files have
extension ".php"
Purpose of PHP:
•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
•With
PHP you are not limited to output HTML. You can output images, PDF files, and
even Flash movies. You can also output any text, such as XHTML and XML.
PHP server on your pc:
However, if your server does not support PHP, you must:
- install a web server(Apache,IIS etc)
- install PHP
- install a database, such as MySQL
The official PHP website (PHP.net) has installation instructions for Authenticated PHP link: http://php.net/manual/en/install.php
Sample PHP program:
PHP program starts with the following syntax:
<?php
//code
?>
//program
<html>
<body>
<h1>My PHP</h1>
<?php
echo "Hai friends"
?>
</body>
</html>
NOTE:
Save the program with extension .php
The output is obtained only when we start the webserver and click the file name found on it.
Sample PHP program:
PHP program starts with the following syntax:
<?php
//code
?>
//program
<html>
<body>
<h1>My PHP</h1>
<?php
echo "Hai friends"
?>
</body>
</html>
NOTE:
Save the program with extension .php
The output is obtained only when we start the webserver and click the file name found on it.
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