ARRAY_SLICE much too time-consuming

[ruffy]

I used "foreach" to traverse a large 2d array.
Then I needed to "array_slice" out new arrays when requirements changed.
The thing is array_slice takes an immense amount of time,
especially when the slice is deep into the original array.

How can I traverse a section of array
simply by moving to the new start key, then traverse from there
till the new end key - without "array_slicing".

Appreciatively - Meir

[steadyguy]

Assuming the outer array is indexed: have you considered using a for loop with dynamically set increments? Supposing you need to access arrays 25 through 32, you could do something like this:

$array = //your multidemensional array ;
$start = '25';
$end = '32';
for ($i = $start; $i < $end; $i++) {
    //use $array[$i] to do whatever you want to each of the 'sliced' arrays
}

If you want to go to the end of the array, you can make $end equal count($array), which gives the number of elements in the array.