回答です

answer/Ex02.php

@@ -0,0 +1,48 @@
+<?php
+// Ex02.php - 表示用ファイル
+require_once __DIR__ . '/Ex02_query.php';
+
+$employees = getEmployees();
+?>
+<!DOCTYPE html>
+<html>
+
+<head>
+    <meta charset="UTF-8">
+    <title>Employees List</title>
+    <link href="../common/css/bootstrap.min.css" rel="stylesheet">
+</head>
+
+<body>
+    <div class="container">
+        <h1>Employees List</h1>
+        <?php if (!empty($employees)): ?>
+            <table class="table table-bordered">
+                <thead>
+                    <tr>
+                        <th>ID</th>
+                        <th>Name</th>
+                        <th>従業員ID</th>
+                        <th>プロジェクトID</th>
+                        <th>Salary</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php foreach ($employees as $emp): ?>
+                        <tr>
+                            <td><?php echo htmlspecialchars($emp['id']); ?></td>
+                            <td><?php echo htmlspecialchars($emp['name']); ?></td>
+                            <td><?php echo htmlspecialchars($emp['dep_id']); ?></td>
+                            <td><?php echo htmlspecialchars($emp['project_id']); ?></td>
+                            <td><?php echo htmlspecialchars($emp['salary']); ?></td>
+                        </tr>
+                    <?php endforeach; ?>
+                </tbody>
+            </table>
+        <?php else: ?>
+            <p>No employee data found.</p>
+        <?php endif; ?>
+    </div>
+</body>
+
+</html>