<?php session_start(); include "db.php"; if (isset($_POST["review"])) { $name = $_POST["name"]; $email = $_POST["email"]; $review = $_POST['review']; $rating = $_POST['rating']; $product_id =$_POST['product_id']; $datetime = date('Y-m-d H:i:s'); $sql = "SELECT review_id FROM reviews WHERE email = '$email' AND product_id = '$product_id' "; $check_query = mysqli_query($con,$sql); $count_email = mysqli_num_rows($check_query); if($count_email > 0){ echo " <div class='alert alert-danger'> <a href='#' class='close' data-dismiss='alert' aria-label='close'>×</a> <b>Multiple reviews are not Allowed</b> </div> "; exit(); }else{ $sql = "INSERT INTO `reviews` (`review_id`, `product_id`, `name`, `email`, `review`, `datetime`, `rating`) VALUES (NULL, '$product_id','$name', '$email', '$review','$datetime', '$rating')"; if(mysqli_query($con,$sql)){ echo "Thanks for Better reach "; echo "<script> location.href='product.php?q=$product_id'; </script>"; exit; }else { echo "something went wrong"; } } } ?>