Core PHP: Multi-Dimensional Arrays (4.5)

Multi-Dimensional Arrays

Let's create a two-dimensional array that contains 3 arrays:

$people = array(
   'online'=>array('David', 'Amy'),
   'offline'=>array('John', 'Rob', 'Jack'),
   'away'=>array('Arthur', 'Daniel')
);

Now the two-dimensional $people array contains 3 arrays, and it has two indices: row and column.
To access the elements of the $people array, we must point to the two indices.

echo $people['online'][0]; //Outputs "David"

echo $people['away'][1]; //Outputs "Daniel"

The arrays in the multi-dimensional array can be both numeric and associative.