Remaining sticks element (HackerRank Task)

array-remaining-sticks.php

<?php

$lengths = [6, 5, 4, 4, 2, 2, 8]; 

$result = [];

while (true) {
    
    $lengths = array_filter($lengths, function($a) { return ($a !== 0); });
        
    $minValue = min($lengths);
    
    $remainingSticks = 0;
    
    foreach ($lengths as $index => $val) {
        
        $lengths[$index] = $lengths[$index] - $minValue;
        
        $remainingSticks++;
    }
        
    if ($remainingSticks > 0) {
        
       $result[] = $remainingSticks;
       
       if ($remainingSticks == 1) {
            break;
       }
       
    } else {
        break;
    }
}