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Sarabjit Kumar, Lovely Professional University Unit 6: Building Blocks of PHP

Unit 6: Building Blocks of PHP Notes

CONTENTS
Objectives

Introduction
6.1 Building Blocks of PHP

6.1.1 Variables
6.1.2 Data Types

6.1.3 Operators
6.1.4 Expressions

6.1.5 PHP Constants
6.1.6 Switch Flow

6.1.7 Loop Control Structures
6.1.8 Browser Output

6.2 Summary
6.3 Keywords

6.4 Self Assessment Questions
6.5 Review Questions

6.6 Further Reading

Objectives

After studying this unit, you will be able to:

• Explain variables in PHP and its data types.
• Discuss types of operators.

• Explain expressions.

• Discuss PHP constants.

Introduction

On the building blocks of PHP, including data types, literals, variables, and constants. Every
concept is illustrated with tested code examples, screen shots showing program output, and
line-by-line explanations.
The basic building blocks of the PHP language: variables and operators. You’ll need to get up to
speed with reading and writing PHP code and a solid grounding in the basics is very important.

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