Exam problem 1

<?php
$listString = $_GET['list'];
$maxSize = $_GET['maxSize'];

$listItems = preg_split('/\s{2}/', $listString, -1, PREG_SPLIT_NO_EMPTY);
echo "<ul>";
foreach ($listItems as $item) {
    if (strlen($item) <= $maxSize) {
        // Small items stay unchanged
        $text = htmlspecialchars($item);
    } else {
        // Long items get truncated
        $text = htmlspecialchars(substr($item, 0, $maxSize)) . "...";
    }
    echo "<li>$text</li>";
}
echo "</ul>";
?>