我想制作一個(gè)類似的系統(tǒng)，這就是我到目前為止所擁有的。我不知道如何讓它只增加一次，有人可以幫助我嗎？我覺得我可能必須使用會話變量，但我不確定。索引.php <?php $con = mysqli_connect('localhost', 'root', '','phplikes'); $query = "SELECT * FROM meme_vote ORDER BY vote DESC"; $res = mysqli_query($con, $query); ?><!DOCTYPE html><html><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Meme Voting System</title> <!-- Latest compiled and minified CSS --><link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"><script src="https://code.jquery.com/jquery-3.4.1.min.js"></script><!-- Latest compiled and minified JavaScript --><script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> </head><body><div class="container"> <div class="row"> <?php while($row = mysqli_fetch_assoc($res)){ $location = $row['video_location'];?> <div class="col-md-4"> <div class="post"> <h4 class="post-title"><?php echo $row['title']?></h4> <div id="postdesign"> <video src="<?php echo $row['video_location'] ?>" width="100%" height="240" controls></video> </div> <a href="javascript:void(0)" class="btn btn-info btn-lg"> <span class="glyphicon glyphicon-thumbs-up " onclick="like_update('<?php echo $row['id']?>')">Vote (<span id="like_loop_<?php echo $row['id']?>"><?php echo $row['vote']?></span>) </span> </a> </div> </div> <?php }?> </div></div>另外只是為了讓您知道，我已經(jīng)建立了會話變量，即。$_SESSION['user_id']和 `$_SESSION['用戶名']
如何更改我的代碼以便用戶只能喜歡該帖子一次？
不負(fù)相思意
2023-06-29 22:35:09
