Gazelle/sections/wiki/revisions.php

<?php
#declare(strict_types=1);

if (!isset($_GET['id']) || !is_number($_GET['id'])) {
    error(404);
}

$ArticleID = (int) $_GET['id'];
$Latest = Wiki::get_article($ArticleID);
list($Revision, $Title, $Body, $Read, $Edit, $Date, $AuthorID, $AuthorName) = array_shift($Latest);

if ($Read > $LoggedUser['EffectiveClass']) {
    error(404);
}

if ($Edit > $LoggedUser['EffectiveClass']) {
    error(403);
}

View::show_header("Revisions of ".$Title);
?>

<div>
  <div class="header">
    <h2>
      Revision history for
      <a href="wiki.php?action=article&amp;id=<?=$ArticleID?>"><?=$Title?></a>
    </h2>
  </div>

  <form action="wiki.php" method="get">
    <input type="hidden" name="action" id="action" value="compare" />
    <input type="hidden" name="id" id="id" value="<?=$ArticleID?>" />

    <table>
      <tr class="colhead">
        <td>Revision</td>
        <td>Title</td>
        <td>Author</td>
        <td>Age</td>
        <td>Old</td>
        <td>New</td>
      </tr>

      <tr>
        <td><?=$Revision?>
        </td>
        <td><?=$Title?>
        </td>
        <td><?=Users::format_username($AuthorID, false, false, false)?>
        </td>
        <td><?=time_diff($Date)?>
        </td>
        <td><input type="radio" name="old" value="<?=$Revision?>"
            disabled="disabled" /></td>
        <td><input type="radio" name="new" value="<?=$Revision?>"
            checked="checked" /></td>
      </tr>

      <?php
$DB->query("
  SELECT
    Revision,
    Title,
    Author,
    Date
  FROM wiki_revisions
  WHERE ID = '$ArticleID'
  ORDER BY Revision DESC");

while (list($Revision, $Title, $AuthorID, $Date) = $DB->next_record()) { ?>
      <tr>
        <td>
          <?=$Revision?>
        </td>

        <td>
          <?=$Title?>
        </td>

        <td>
          <?=Users::format_username($AuthorID, false, false, false)?>
        </td>

        <td>
          <?=time_diff($Date)?>
        </td>

        <td>
          <input type="radio" name="old" value="<?=$Revision?>" />
        </td>

        <td>
          <input type="radio" name="new" value="<?=$Revision?>" />
        </td>
      </tr>
      <?php } ?>

      <tr>
        <td class="center" colspan="6">
          <input type="submit" class="button-primary" value="Compare" />
        </td>
      </tr>
    </table>
  </form>
</div>
<?php
View::show_footer();