Core PHP: Numeric Arrays (4.0)

Arrays

An array is a special variable, which can hold more than one value at a time.
If you have a list of items (a list of names, for example), storing them in single variables would look like this:

$name1 = "David";
$name2 = "Amy";
$name3 = "John";

But what if you have 100 names on your list? The solution: Create an array!

Numeric Arrays

Numeric or indexed arrays associate a numeric index with their values.
The index can be assigned automatically (index always starts at 0), like this:

$names = array("David", "Amy", "John");

As an alternative, you can assign your index manually.

$names[0] = "David";
$names[1] = "Amy";
$names[2] = "John";

We defined an array called $names that stores three values.
You can access the array elements through their indices.

echo $names[1]; // Outputs "Amy"

Remember that the first element in an array has the index of 0, not 1.