Need to get the last index number of an array

[tibberous]

I have an array, and I need to know what the current index is. So, lets say I do:

 

$arr = array();

$arr[] = 'one';

$arr[] = 'two';

$arr[] = 'three';

 

I next index would be 3. I can find that by going count($arr).

 

But, what if I unset an element in $arr? Then count would not return 3.

 

Any idea how to find what the next available spot is?

[Daniel0]

$keys = array_keys($array);
$next = $keys[count($keys) - 1] + 1;

[tibberous]

Thanks

[Alex]

Or

 

$next = end(array_keys($arr)) + 1;

 

This will not work as you want if the element that you unset is the last one though (I assume this isn't a problem for what you're doing), same with Daniel's.