When a user logs in, updating a database field can provide an efficient way to monitor their online status. By periodically querying this field, you can determine whether a user is currently active.
To achieve this:
To identify online users:
For near real-time updates on user activity:
Original 2009 Code:
<code class="javascript">var stillAlive = setInterval(function () { /* XHR back to server Example uses jQuery */ $.get("stillAlive.php"); }, 60000);</code>
Updated 2022 Code:
<code class="javascript">(async function ping() { // Asynchronously call stillAlive.php await fetch("stillAlive.php"); // Issue this call again in 60 seconds setTimeout(ping, 60_000); }());</code>
By implementing this approach, you can reliably determine user online status in PHP/MySQL. It avoids time zone complexities and provides a scalable solution for tracking active users on your website.
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