Iterating over array getting look-ahead items along

1. Comments

A simple task but for some reason I liked it, after all the small optimizations I made

So we need to loop over array taking a limited number of loop-ahead items as well. If there are no more items, we should start from the beginning.

<?php
// always make such numbers configurable
$num_lookaheads = 5;

// test array
$images = [1,2,3,4];
// limit the number of lookaheads if array is too small
$limit = min($num_lookaheads, count($images));

foreach ($images as $position => $value)
{
    // current item
    echo $value,"\n";

    // getting look-aheads 
    // taking the missing items from the beginning
    $beginning = 0;
    for($i = 1; $i < $limit; $i++) {
        $ahead = $images[$position + $i] ?? $images[$beginning++];
        echo "    ", $ahead,"\n";
    }
}