storiing two elements into a 2-D array

Anon

Dear all,

Does anyone know how I can store two elements into a two dimensional array? ie. and integer and a float. Do I create a class or an object? How?

cordex

$variable_ar[0][0] = "A string";
$variable_ar[1][0] = 1;
$variable_ar[0][2] = 1.23124125135;

If you are asking how to store a variable like:
$variable_ar[0] = 5;
and
$variable_ar[0][0] = .2342342;
I don't think it can be done.

Or perhaps I misunderstand the question. Would you like to reprhase?

Anon

Hi,
Thanks for the reply.
What I wanted to do is to be able to have two element of a type int and type float stored as a single entry like :

matrix[j]= (2,3.6)

many thanks,
Katie

cordex

Well, if you're willing to step up to a three dimensional array, it's quite simple.

However, if you are dead set on using a 2-d arrray, you could store the string "2,3.6" as the value of matrix[j] and when you needed the two variables extracted, just run it through an implode(",",$matrix[j]) or strtok($matrix[j], ",") or something.

-Ben

Anon

Hi,

Thanks. So if i do store it in a 2-D array as a string instead of two different types.
But am still not sure how u can access them, I need to access each one, since I need to plug the values in to a Dikstra algorithm, which i still can't work out.

Thanks,

katie

cordex

When you want to access the values, (for example, let's say that you are ready for $matrix[$a][$b] which contains the string "2,3.6") you would do the following:

$tempvar_ar = implode(",",$matrix[$a][$b]);

Now, to access the variables:
$tempvar_ar[0] is equal to 2
$tempvar_ar[1] is equal to 3.6

Should work.

-Ben