Checking during array iteration, if the current element is the last element

Question

Please help me to translate this pseudo-code to real php code:

 foreach ($arr as $k => $v)
    if ( THIS IS NOT THE LAST ELEMENT IN THE ARRAY)
        doS         


        

Answer 1

I know this is old, and using SPL iterator maybe just an overkill, but anyway, another solution here:

$ary = array(1, 2, 3, 4, 'last');
$ary = new ArrayIterator($ary);
$ary = new CachingIterator($ary);
foreach ($ary as $each) {
    if (!$ary->hasNext()) { // we chain ArrayIterator and CachingIterator
                            // just to use this `hasNext()` method to see
                            // if this is the last element
       echo $each;
    }
}