blocks|key|1735234|text|试试看。这大于或等于14天。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1735235|+if($timenow+>=+$days_time){
+++++mail(+$users_email,+$subject,+$emailbody,+$headers);
++++echo+"email+sent!";
+}|code-block|syntax|javascript|1735236|此外，SELECT+*也是一种不好的做法。您应该只选择在该查询中需要的字段。|1735237|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Try. Thats greater than or equal to 14 days.

<pre><code> if($timenow &gt;= $days_time){
 mail( $users_email, $subject, $emailbody, $headers);
 echo "email sent!";
 }
</code></pre>

Also SELECT * is bad practice. You should only select the fields you need in that query.

blocks|key|1735273|text|我建议在SQL中进行日期比较，而不是拉回查询中的所有数据：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1735274|SELECT+*+FROM+accounts+WHERE+DateDiff(Now(),+fourteendays)+>+14|code-block|syntax|javascript|1735275|另外，数据库中该列中的内容是什么？如果它是一个时间戳，为什么你不这样叫它呢？我是不是遗漏了什么？|1735276|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I recommend doing the date comparison in SQL, instead of pulling back all of the data in your query:

<pre><code>SELECT * FROM accounts WHERE DateDiff(Now(), fourteendays) &gt; 14
</code></pre>

Also, what is in that column in the database? If it is a timestamp, why don't you just call it as such? Am I missing something?

blocks|key|1729671|text|我假设您已经在脚本中的某个位置设置了'$timenow‘变量，并且我会确保在比较时检查两个时间格式是否相同。这是我过去的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1729672|有关与日期相关的php信息，请访问以下链接|1729673|http://ca.php.net/manual/en/function.date.php|offset|length|1729674|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|19|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@$F|R|G|S|1|T]]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|E]]]]

I assume you have already set the '$timenow' variable somewhere previous in the script and I would make sure to check that both time formats are the same when comparing. That was my problem in the past.

For date-related php information, visit the following link

<a href="http://ca.php.net/manual/en/function.date.php" rel="nofollow noreferrer">http://ca.php.net/manual/en/function.date.php</a>

blocks|key|328373|text|甚至是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|328374|SELECT+*+FROM+accounts+WHERE+fourneendays+<+(NOW()+-+INTERVAL+14+DAYS);|code-block|syntax|javascript|328375|我假设NOW()给出了你想要的时间戳-它不会是UTC格式的(但你知道的，对吧)？|328376|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Or even

<pre><code>SELECT * FROM accounts WHERE fourneendays &lt; (NOW() - INTERVAL 14 DAYS);
</code></pre>

I am assuming that NOW() gives the timestamp you want - it won't be in UTC (But you knew that, right)?

I am trying to get all the users information from the database and check the timestamp (fourteendays) and check it with the time now I got the time bit working but I can't get it to send to all the when the time is > fourteendays 

<pre><code> $result1 = mysql_query("SELECT * FROM accounts") or die (mysql_error()); 
 while ($row1 = mysql_fetch_array($result1)) {
 $users_email = $row1['email'];
 $user_name = $row1['user'];
 $days_time = $row1['fourteendays'];
 if($timenow &gt; $days_time){
 mail( $users_email, $subject, $emailbody, $headers);
 echo "email sent!";
 }
 }
</code></pre>

php mail() statements

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。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我正在尝试从数据库中获取所有用户信息，并检查时间戳(四天)，并检查它与时间现在我有工作的时间位，但我不能让它发送到所有的时候，时间是>四天 $result1 = mysql_query("SELECT * FROM accounts") or die (mysql_error());  while ($row1 = m...

问php mail()语句
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问php mail()语句EN