PHP question on the multidimensional array

My array looks like this:

Array ( [Bob] => Red [Joe] => Blue )

But it could be any number of people, like this:

Array ( [Bob] => Red [Joe] => Blue [Sam] => Orange [Carla] => Yellow)

Basically I want PHP to take this array and echo it so that it comes out looking like:

Bob - Red
Joe - Blue
Sam - Orange
Carla - Yellow

I know I need to loop through the array, this is what I tried:

for ($row = 0; $row < count($array); $row++) {
echo $array[0] . " - " . $array[1];
}

I get the following error: Undefined offset: 0, Undefined offset: 1

I realize that this doesn't work because I'm trying to use index's when the values of the array are strings. Is there any way I can use positional index's like this with a multidimensional array that only contains strings?

Thanks

---

What you want is a foreach loop.

foreach ($array as $key => $value) {
    echo $key . ' - ' . $value;
}

(if you want a newline, append "\n" to the end)

Your array is actually not multidimensional. An example of that would be

array(
    array(
        'bob',
        'tom'
    )
);

Note the array within the array.

Your array is generally called an associative array.