apurvagupta

Solutions:

//Solution #1 : Validation Code snippet:

<?php if (preg_match('/^[ A-Za-z0-9_@.#&-]*$/', $_GET['query'])) { ?>
    <div class="column prepend-1 span-24 first last">
        <h2>Pictures that are tagged as '<?= $_GET['query']  ?>'</h2>

        <?php thumbnail_pic_list($pictures); ?>
    </div>