Deleting array fields...

Is there a way to delete array fields without resort the keys? The keys of this particular array are the position of the words it holds to their position in a string and if they are changed it screws everything up. I tried using array_splice but that, unfortunately, rearranges the keys. So, to reiterate, what I want to do is remove a key from an array but not have the keys automatically reassigned. Thanks, Jason Giangrande