30分钟后使用Cron作业/事件计划程序删除MySQL行

问题描述

我是在MySQL和PHP / Cron Jobs的noob，所以如果你都可以很容易地解释它在哪里放事件等，这将是伟大的，无论如何，与问题。

I am quite the noob at MySQL and PHP/Cron Jobs so if you all could explain it easily as in where to put the event, etc, that'd be great, anyways, on with the question.

问题：我有一个名为my_Table的表，它有一个包含3个字段的条目：name，age，timestamp。所以一行有这个例子。 Sam | 20 | whateverthetimeis。
现在，当该行达到30分钟老，我希望它被删除，与任何其他行，30分钟，谢谢大家的帮助，我已经阅读其他答案，但像我说我' m仍然是一个初学者，不明白什么人在回答。感谢您的帮助

Question: I have a table called my_Table and it has an entry with 3 fields: name,age,timestamp. So one row has this for instance. Sam | 20 | whateverthetimeis.Now, when that row reaches 30 minutes old, I want it to be deleted, same with any other rows that hit 30 minutes, thank you all for the help, I have read the other answers but like I said I'm still a beginner and dont quite understand what people are answering. Thanks for the help

如果我可以用Cron作业或MySQL事件（我不知道如何设置一个事件），这将是伟大的任何人帮助！ ：D

If I can do this with a Cron Job or a MySQL Event (I don't know how to set an event up) it would be great for anyone to help! :D

我的代码在30分钟后删除（删除所有行，即使他们不是30分钟）

My code for deleting after 30 minutes (Deletes all rows even when they aren't 30 minutes old)

<?php
include_once('../config.php');

$con = mysql_connect(DB_HOST, DB_USER, DB_PASS);
mysql_select_db(DB_NAME);



$runpurge = mysql_query ("DELETE FROM my_table WHERE timestamp < NOW() - INTERVAL 30 MINUTE");






?>

主显示代码：

$result = mysql_query ("SELECT * FROM cw_LFG ORDER BY `time` DESC ") or die(mysql_error);



while ($row=mysql_fetch_array($result)) {

    echo "<tbody>";
    echo "<tr><td>";
    echo strip_tags($row['cname']);
    echo "</td><td>";
    echo $row['level'];
    echo "</td><td>";
    echo strip_tags($row['region']);
    echo "</td><td width='100px'>";
    echo timeElapsed(strtotime($row['time']));
    echo "</td><td style='word-wrap: break-word'>";
    echo strip_tags($row['comment']);
    echo "</td></tr>";
    echo "</tbody>";



}

echo "</table>";
$curtime = date('Y-m-d H:i:s');
$curtimestr = strtotime($curtime);
function timeElapsed($time) {
    $elapsedTime = time() - $time;

    if ($elapsedTime < 1) {
        return 'Right now';
    }
    if ($elapsedTime < 60){
        return '< 1 Minute ago';
    }

推荐答案

p>

The SQL would be

DELETE FROM my_table
WHERE timestamp < NOW() - INTERVAL 30 MINUTE

编写一个执行此SQL的PHP​​脚本，并添加一个crontab条目每30分钟运行一次。或者使用MySQL事件计划程序定期运行它; 。

Write a PHP script that executes this SQL, and add a crontab entry that runs it every 30 minutes. Or use the MySQL Event Scheduler to run it periodically; it is described here.

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