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Unit 1: Introduction to PHP

• PHP supports all the popular database systems, including MySQL, PostgreSQL, Oracle, Notes
Sybase, and ODBC-compliant databases.
1.6 Keywords

Binaries directory: Where programs and PHP scripts from PEAR packages are installed. The
pear executable ends up here.
Installation prefix: It is the root directory of PEAR installation. It has no other effect than serving
as a root for the next five settings, using and prefix.
PHP code directory: This directing exists where PHP code is installed. This directory is the include
N path when using the packages you install.
Hypertext Preprocessor (PHP): It is a scripting language originally designed for web development
to produce web pages.
Test base directory: Where regression test scripts for the package are installed.

1. Develop a PHP program for a welcome page.

2. Develop a PHP program to create a dynamic button.

1.7 Review Questions

1. What was the main purpose to develop the PHP? How was it used?
2. Give a brief history of PHP.
3. Write the steps how to install PHP in your PC.

4. What are the minimum requirements to install the PHP in your PC?
5. Write the main features of PHP.
6. Write a PHP program to process a form.
7. Discuss which databases are mainly used in PHP. What will be the program to bond the
data base in PHP?
8. What is the use of graphics in PHP? Explain with example.
9. Develop a shell-based PHP program to create a dropdown list.
10. Write a code for configure PHP as an Apache module.

Answers to Self Assessment
1. (a) 2. (c) 3. (c) 4. (b) 5. (b)

6. (a) 7. PHP 8. Go.pear.org 9. PEAR

1.8 Further Readings

A Programmer’s Introduction to PHP 4.0, by W. J. Gilmore.
Learning PHP, MySQL, and JavaScript, by Robin Nixon.

http://books.google.co.in/books?id=Zwzc4qUZnqMC&lpg=PA33&dq=Int
roduction%20to%20PHP&pg=PA33#v=onepage&q=Introduction%20to%20
PHP&f=false

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