Initial version of widgets

public_html/templates/widget.php

@@ -0,0 +1,30 @@
+
+<a style="text-decoration: none;" data-toggle="collapse" href="#collapseLastDays" role="button" aria-expanded="true" aria-controls="collapseLastDays">
+<div class="card bg-light card-body"><?= $widget['title'] ?></div></a>
+
+<div class="collapse show" id="collapseLastDays">
+    <?= $widget['time_period'] ?>
+    <div class="mb-5">
+        <table class="table table-striped table-hover table-bordered">
+            <thead class="thead-dark">
+                <tr>
+<?php foreach ($widget['table_headers'] as $header) { ?>
+                    <th scope="col"><?= htmlspecialchars($header) ?></th>
+<?php } ?>
+                </tr>
+            </thead>
+            <tbody>
+<?php foreach ($widget['table_records'] as $row) { ?>
+                <tr>
+<?php foreach ($row as $key => $column) {
+            if ($key === 'conference ID' && $column === $conference_id) { ?>
+                    <td><strong><?= htmlspecialchars($column ?? '') ?></strong></td>
+<?php       } elseif ($key === 'conference name') { ?>
+                    <td><a href="<?= $app_root ?>?page=conferences&name="<?= htmlspecialchars($column ?? '') ?>"">"<?= htmlspecialchars($column ?? '') ?>"</a></td>
+<?php       } ?>
+                </tr>
+<?php } ?>
+            </tbody>
+        </table>
+    </div>
+</div>