3

db/migrations/002_create_comments_table.php

@@ -0,0 +1,25 @@
+<?php
+require_once __DIR__ . '/../config.php';
+
+function migrate_002_create_comments_table() {
+    try {
+        $pdo = db();
+        $sql = "
+CREATE TABLE IF NOT EXISTS `comments` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `post_id` int(11) NOT NULL,
+  `name` varchar(255) NOT NULL,
+  `comment` text NOT NULL,
+  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  KEY `post_id` (`post_id`),
+  CONSTRAINT `comments_ibfk_1` FOREIGN KEY (`post_id`) REFERENCES `posts` (`id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+";
+        $pdo->exec($sql);
+        echo "Migration 002: Comments table created successfully.\n";
+    } catch (PDOException $e) {
+        die("Migration 002 failed: " . $e->getMessage() . "\n");
+    }
+}
+

post.php

@@ -8,12 +8,39 @@ if (!$post_id || !filter_var($post_id, FILTER_VALIDATE_INT)) {
     exit;
 }
 
+// Handle comment submission
+if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['action']) && $_POST['action'] === 'create_comment') {
+    $name = trim($_POST['name'] ?? '');
+    $comment_text = trim($_POST['comment'] ?? '');
+
+    if (!empty($name) && !empty($comment_text)) {
+        try {
+            $pdo = db();
+            $stmt = $pdo->prepare("INSERT INTO comments (post_id, name, comment) VALUES (?, ?, ?)");
+            $stmt->execute([$post_id, $name, $comment_text]);
+            header("Location: post.php?id=" . $post_id);
+            exit;
+        } catch (PDOException $e) {
+            error_log("DB Error: " . $e->getMessage());
+        }
+    }
+}
+
 $post = null;
+$comments = [];
 try {
     $pdo = db();
+    
+    // Fetch post
     $stmt = $pdo->prepare("SELECT * FROM posts WHERE id = ?");
     $stmt->execute([$post_id]);
     $post = $stmt->fetch();
+
+    // Fetch comments
+    $stmt = $pdo->prepare("SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC");
+    $stmt->execute([$post_id]);
+    $comments = $stmt->fetchAll();
+
 } catch (PDOException $e) {
     error_log("DB Error: " . $e->getMessage());
 }
@@ -68,6 +95,37 @@ if (!$post) {
                         <?php echo nl2br(htmlspecialchars($post['content'])); ?>
                     </section>
                 </article>
+
+                <section class="mb-5">
+                    <div class="card bg-light">
+                        <div class="card-body">
+                            <!-- Comment form-->
+                            <form class="mb-4" method="POST">
+                                <input type="hidden" name="action" value="create_comment">
+                                <div class="mb-3">
+                                    <label for="name" class="form-label">Your Name</label>
+                                    <input type="text" class="form-control" id="name" name="name" required>
+                                </div>
+                                <div class="mb-3">
+                                    <label for="comment" class="form-label">Your Comment</label>
+                                    <textarea class="form-control" rows="3" id="comment" name="comment" required></textarea>
+                                </div>
+                                <button type="submit" class="btn btn-primary">Submit Comment</button>
+                            </form>
+                            <!-- Comments section-->
+                            <?php foreach ($comments as $comment): ?>
+                            <div class="d-flex mb-4">
+                                <div class="flex-shrink-0"><img class="rounded-circle" src="https://dummyimage.com/50x50/ced4da/6c757d.jpg" alt="..." /></div>
+                                <div class="ms-3">
+                                    <div class="fw-bold"><?php echo htmlspecialchars($comment['name']); ?></div>
+                                    <?php echo htmlspecialchars($comment['comment']); ?>
+                                </div>
+                            </div>
+                            <?php endforeach; ?>
+                        </div>
+                    </div>
+                </section>
+
                 <a href="/" class="btn btn-outline-primary">&larr; Back to all posts</a>
             </div>
         </div>