blocks|key|1237888|text|看一下用于设置cookie的函数setcookie()和用于获取设置的cookie的值的$_COOKIE"mycookie“。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1237889|但请注意，用户可以通过删除cookie来绕过您的“解决方案”。|1237890|一个更复杂(但更好)的解决方案是实现一个用户系统(具有登录等功能)，并检查数据库中最后一篇文章的时间。|1237891|entityMap|0|LINK|mutability|MUTABLE|url|http://www.php.net/manual/en/function.setcookie.php^0|G|B|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]]]

Take a look at the function <a href="http://www.php.net/manual/en/function.setcookie.php" rel="nofollow noreferrer">setcookie()</a> for setting cookies and $_COOKIE["mycookie"] for getting the value of the setted cookie.

But be aware that the user can simply bypass your "solution" by deleting the cookie.

A more complex (but better) solution would be to implement a user-system (with login and so on) and check the time of the last post in the database.

blocks|key|1237906|text|除了如何使用cookie，你为什么要这样做呢？如果您想要避免技术先进的垃圾邮件发送者，设置客户端cookie将阻止他们大约5秒，然后他们禁用您的网站cookie或以其他方式绕过您的限制。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1237907|至于如何设置，您可以简单地设置一个超时为30分钟的cookie。如果cookies存在，则阻止。如果没有，他们可以自由发布。|1237908|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Aside from the how to do it with a cookie, why are you doing it? If you want to avoid technically advanced spammers, setting a client side cookie is going to deter them for about 5 seconds before they disable cookies for your site or otherwise work around your restriction.

As for how, you could simply set a cookie with a timeout of 30 minutes. If the cookies exists, block. If not, they're free to post.

blocks|key|1271303|text|不要在客户端(cookies、javascript等)这样做；这很容易被绕过。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1271304|如果用户必须注册才能发布评论，您可以在存储上次评论时间的数据库中添加一个列/表。每次在发表评论之前，你都会检查从在数据库中注册的那一刻到现在是否已经过了30分钟。如果不是，则中止操作。|1271305|如果你不需要注册，你可以给数据库保存一个元组(IP，time)，然后继续同样的操作。|1271306|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Don't do it client side (cookies, javascript, whatever); that can be easily circumvented.

If the user must be registered in order to post a comment, you can add a column/table in the database where the time of last comment is stored. Every time before a comment is posted, you then check if 30 minutes have elapsed since that instant that's registered in the database. If not, you abort the operation. 

If you don't require registration, you can save the database a tuple (IP, time) and proceed likewise.

blocks|key|5055731|text|在不了解你的项目的情况下，我会这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5055732|5055733|当用户发布第一次检查您的cookie是否存在时|ordered-list-item|5055734|如果cookie不存在允许用户发布，并使用当前时间戳创建cookie+|5055735|如果cookie确实存在，请检查时间戳是否比当前时间早30分钟。|5055736|如果时间超过30分钟，则让他们发布并重置时间。|5055737|H19如果不存在，则给他们一条漂亮的消息，说明他们必须等待。H210<代码>G211|5055738|当然，这不是最好的方法，因为他们必须启用cookie，否则可能会删除cookie，等等。就我个人而言，我会通过a)让每个用户创建一个帐户来发布(这并不是太疯狂的想法，因为你担心用户每30分钟发布一次以上)，或者b)检查他们的IP地址来处理这个服务器端。|5055739|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|S|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|T|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|U|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|V|8|@]|9|@]|A|$]]|$1|J|3|K|5|E|7|W|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|X|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|Y|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|Q|$]]

Without knowing more about your project, I would do it something like this:

<ol>
<li>When a user posts first check to see if your cookie exists</li>
<li>If it does not exist allow the user to post, and create a cookie with a current timestamp</li>
<li>If the cookie does exist, check to see if the time stamp is more than 30 minutes prior to the current time.</li>
<li>If the time is more than 30 minutes, let them post and reset the time.</li>
<li>If not, give them a pretty message which says they have to wait.</li>
</ol>

Of course this isn't the best method because they have to have cookies enabled, or they could delete the cookie, or whatnot. Personally I would handle this server side by either a) having each user create an account to post (which isn't too crazy of an idea of you are that worried about a user posting more than once every 30 minutes), or b) checking their IP address.

blocks|key|5055767|text|为什么选择jquery？你可以通过php来完成。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5055768|将用户数据存储在cookie中(如果他/她是注册用户，存储id，如果不是存储ip地址)，并将时间设置为30分钟(或任何您想要的).then验证，如果cookie处于活动状态，则不允许写评论。|5055769|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Why jquery? You can do it by php.

Store user data in cookies(if he/she is registered user, store id, if not - store ip address), and set time to 30minutes(or whatever you want).then verify, if the cookie is active, don't allow to write a comment.

blocks|key|3587534|text|使用会话|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3587535|例如，在post之后，将当前时间%2B+30分钟放在您的会话行中此$_SESSION['postTimeFlag']+=+time()+%2B+1800;，然后每当用户将要发布会话时|offset|length|style|CODE|3587536|if(time()>$_SESSION['postTimeFlag'])+{+
+++//continue+posting
}|code-block|syntax|javascript|3587537|entityMap^0|0|V|16|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|S|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Use Session

For example, after a post, put the current time + 30 minutes in your session line this
<code>$_SESSION['postTimeFlag'] = time() + 1800;</code>
Then whenever the user is about to post then the session

<pre><code>if(time()&gt;$_SESSION['postTimeFlag']) { 
 //continue posting
}
</code></pre>

Thanks for looking.

I'm trying to write a script to set a cookie after the user posts a comment, limiting them from posting again for 30 minutes. I'm so confused on where to start. Please, could you guys help me out on how I do this?

I'm trying to use this jquery plugin – <a href="http://keith-wood.name/countdown.html" rel="nofollow noreferrer">countdown timer</a>.

Limit posting to every 30 minutes

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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谢谢你的关注。我正在尝试写一个脚本，在用户发表评论后设置cookie，限制他们在30分钟内再次发表评论。我对从哪里开始感到很困惑。你们能帮我讲讲怎么做吗？我正在尝试使用这个jquery插件-- 。

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