PHP Tutorial

Variables introduction

Variables are used by programmers to store values and to refer to those values in code. Variables in PHP need not be defined. Variable types also do not exist although variable scope does. All variables begin with a $ sign. Variable names can contain numbers, letters and underscores. Variable names can only begin with letters or underscores. PHP variables are case sensitive. For ex: $a is different from $A. Below are given some examples of valid variable names:

Introduction

PHP Hypertext Preprocessor (PHP) is the most popular server-side scripting language on the world wide web. This guide is designed to introduce programmers familiar with other programming languages to PHP.

This guide will take the form of a series of posts that will cover PHP from the basics to intermediate level. In this post I will cover code delimiters, comments and PHP statements.