2D Array

[Anon]

i know 1D Array can be type as:
var name = new Array();

i want to know how to type 2D Array? is it like the above but with a little be more?

please reply, thank you

acinom

[[deleted]]

a 2d array is an array of arrays:

$a = array( array(1,2,3) , array(5,6,7) , array(0,1,2) );

and you can access the elements like this:

echo $a[2][1];

[Anon]

An array can be of any dimension length. So your declaration var name = new array(); will work for it. But when you fill the array is when you need to think about how many dimensions it's going to have.

Examples of filling arrays;

$name = array("bob", "frank", "bill");
$name = array("first" => array("bob", "frank", "bill"),

"last" => array("smith", "jones", "doe"));
$name = array(1 => array("first" => array("bob", "frank", "bill"),
"last" => array("smith", "jones", "doe")),
2 => array("first" => array("mary", "jane"),
"last" => array("smith", "jones")));

There are 3 different array declarations all using the same style to declare them. You could also do something like this:

$name = array();
$name["last"] = array("bob", "frank", "bill");
$name[1]["last"] = array("bob", "frank", "bill");

And so on.