Is there a way to re-set an array to null so I can use it multiple times for processing strings of varying lengths on the same page?

I have a 3-page form and am storing the name-value pairs from each page in a cookie.

On the 4th page, I print the name-value pairs from the 3 pages of my form, one page at a time -- I do this by calling a function 3 times & I want to use the same array 3 times.

The 1st page had 8 fields & I printed them out fine using the array.
The 2nd page had 12 fields & I printed them with no problem -- the array size simply expanded.

However, the 3rd page had 11 fields (1 field fewer than the page before it) & when I printed out the 11 3rd page values, it also printed the 12th value left over in the array from my previous page.

How can I "empty out" the array or re-set the array length to zero each time I use it?

I decided to experiment by setting the array's length to zero, before re-using it.

This apparently worked.

If anyone knows of a better solution, please let me know.

Thanks.

That's an accepted way, another would be to re-initialise:
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Joe