PHP for the Web: Visual QuickStart Guide, Fourth Edition

7. Using Arrays

In This Chapter

What Is an Array? 152

Creating an Array 154

Adding Items to an Array 158

Accessing Array Elements 161

Creating Multidimensional Arrays 164

Sorting Arrays 168

Transforming Between Strings and Arrays 172

Creating an Array from a Form 176

Review and Pursue 182

The next—and last—variable type you’ll learn about in this book is the array. Arrays are significantly different from numbers or strings, and you can’t make the most of programming in PHP without understanding them.

Because of their unique nature, this chapter will cover arrays more deliberately and slowly than the other variable types. The chapter begins with an introduction to the concept, along with the basics of creating and using arrays. Then it covers ...