diff --git a/add_review.php b/add_review.php
index bce9f75dcb252812a40510426a6852455b3f1f10..b89e01cd91812bad0b3e9693582b55090133298f 100644
--- a/add_review.php
+++ b/add_review.php
@@ -1,57 +1,47 @@
-<?php 
+<?php  
+error_reporting(E_ALL);
+ini_set('display_errors', 1);
 
 include 'components/connect.php';
+session_start(); // ตรวจสอบว่ามี session หรือไม่
+$user_id = $_SESSION['user_id'] ?? ''; // ตรวจสอบว่าผู้ใช้ล็อกอินหรือไม่
 
 if(isset($_GET['get_id'])){
    $get_id = $_GET['get_id'];
-}else{
-   $get_id = '';
+} else {
    header('location:all_posts.php');
+   exit();
 }
 
 if(isset($_POST['submit'])){
-
-   // ตรวจสอบว่าผู้ใช้ได้เข้าสู่ระบบหรือไม่
-   if($user_id != ''){
-
-      // ฟังก์ชันสร้าง ID ที่ไม่ซ้ำ
+   if(!empty($user_id)){
       function create_unique_id(){
          return uniqid();
       }
-
+      
       $id = create_unique_id();
-      $title = $_POST['title'];
-      $title = filter_var($title, FILTER_SANITIZE_STRING);
-      $description = $_POST['description'];
-      $description = filter_var($description, FILTER_SANITIZE_STRING);
-      $rating = $_POST['rating'];
-      $rating = filter_var($rating, FILTER_SANITIZE_STRING);
-
-      // ตรวจสอบว่ารีวิวของผู้ใช้คนนี้ได้ถูกเพิ่มไปแล้วหรือไม่
-      $verify_review = $conn->prepare("SELECT * FROM `reviews` WHERE post_id = ? AND user_id = ?");
-      $verify_review->execute([$get_id, $user_id]);
-
-      if($verify_review->rowCount() > 0){
-         // ถ้ามีรีวิวแล้วจะแสดงข้อความเตือน
-         $warning_msg[] = 'Your review already added!';
-      }else{
-         // ถ้าไม่มีรีวิวเพิ่มเข้าไปในฐานข้อมูล
-         try {
+      $title = filter_var($_POST['title'], FILTER_SANITIZE_STRING);
+      $description = filter_var($_POST['description'], FILTER_SANITIZE_STRING);
+      $rating = filter_var($_POST['rating'], FILTER_SANITIZE_STRING);
+      
+      try {
+         $verify_review = $conn->prepare("SELECT * FROM `reviews` WHERE post_id = ? AND user_id = ?");
+         $verify_review->execute([$get_id, $user_id]);
+         
+         if($verify_review->rowCount() > 0){
+            $warning_msg[] = 'Your review already added!';
+         } else {
             $add_review = $conn->prepare("INSERT INTO `reviews`(id, post_id, user_id, rating, title, description) VALUES(?,?,?,?,?,?)");
             $add_review->execute([$id, $get_id, $user_id, $rating, $title, $description]);
             $success_msg[] = 'Review added!';
-         } catch (Exception $e) {
-            // ถ้ามีข้อผิดพลาดจะจับข้อผิดพลาดและแสดงข้อความ
-            $error_msg[] = 'Error: ' . $e->getMessage();
          }
+      } catch (PDOException $e) {
+         die("Error: " . $e->getMessage());
       }
-
-   }else{
+   } else {
       $warning_msg[] = 'Please login first!';
    }
-
 }
-
 ?>
 <!DOCTYPE html>
 <html lang="en">
@@ -60,21 +50,13 @@ if(isset($_POST['submit'])){
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>add review</title>
-
-   <!-- custom css file link  -->
    <link rel="stylesheet" href="css/style.css">
-
 </head>
 <body>
-   
-<!-- header section starts  -->
-<?php include 'components/header.php'; ?>
-<!-- header section ends -->
 
-<!-- add review section starts  --> 
+<?php include 'components/header.php'; ?>
 
 <section class="account-form">
-
    <form action="" method="post">
       <h3>post your review</h3>
       <p class="placeholder">review title <span>*</span></p>
@@ -90,20 +72,12 @@ if(isset($_POST['submit'])){
          <option value="5">5</option>
       </select>
       <input type="submit" value="submit review" name="submit" class="btn">
-      <a href="view_post.php?get_id=<?= $get_id; ?>" class="option-btn">go back</a>
+      <a href="view_post.php?get_id=<?= htmlspecialchars($get_id); ?>" class="option-btn">go back</a>
    </form>
-
 </section>
 
-<!-- add review section ends -->
-
-<!-- sweetalert cdn link  -->
 <script src="https://cdnjs.cloudflare.com/ajax/libs/sweetalert/2.1.2/sweetalert.min.js"></script>
-
-<!-- custom js file link  -->
 <script src="js/script.js"></script>
-
-<?php include 'components/alers.php'; ?>
-
+<?php include 'components/alerts.php'; ?>
 </body>
-</html>
+</html>
\ No newline at end of file