Editing Arrays (It seems easy in concept

[Anon]

I hope that this is really an easy question I have, but I am finding it very difficult to find an answer to it.

Let's say that I have an array consisting of (1,2,3,3,2,3,4,5,3).

Using array_count_values, I can retrieve the amount of times one of these values appears in an array. So for example:

$quantity = array_count_values (1,2,3,3,2,3,4,5,3)
$quantity[3] = 4

Now, let's say that I want to change the number of times 3 appears in the array. Instead of it appearing 4 times, I want it to appear 2 times. The updated example array should be (1,2,3,3,2,4,5) (sorting doesn't matter, just contents)

Is there a way to update the $quantity[3] value so that it updates the full array? If so, how would I do this? If not, is there a work around?

I have a terrible tendency of looking over the most simple and direct answers, so I wouldn't be surprised if I'm missing something that is painfully obvious. Any and all help is appreciated.

[Anon]

There's no built-in function to do that - you'll have to build your own. It shouldn't be that hard. You just take the difference between 4 and 2, which is 2, and then just go thru the loop and create a new array without two 3's.

Diego

[Anon]

Yeah, I kinda figured as much. The problem is that I'm uncertain exactly how to do that. I understand the concept, but not the implementation.

How do I tell a function that I want 2 instances of the number 3 put into an array? I hate to be a bother, but I'd really appreciate some sample code if any one could spare some.