php - How to change a foreach to a for loop? -

i've read on web page, explaining in php must faster execution loop foreach. new me, test himself. how convert foreach loop in php? using 1 below example:

foreach ($station->items->item $trips=>$trip) {     $ny_trips[$trips] = $trip; } 

i've seen loops in php, not using 'as' in them. i'm not sure how above in php loop. require doing count() of $station->items->item? thanks!

assuimg keys on array perfect numerical sequence starting @ 0 looking for.

for($x = 0, $nitems = count($station->items->item); $x<$nitems; $x++) {     $ny_trips[$x] = $station->items->item[$x]; } 

if keys non-numeric or not in perfect order need this.

$keys = array_keys($station->items->item); for($x = 0, $nitems =  count($station->items->item);$x < $nitems; $x++) {     $ny_trips[$keys[$x]] = $station->items->item[$keys[$x]]; }