我可以每隔设定的时间读取外部文件吗？

发布于 2024-11-16 21:17:09 字数 368 浏览 1 评论 0原文

我正在编写一个脚本，它会检查来自外部服务器的更新版本。我在 config.php 文件中使用此代码来检查最新版本。

$data = get_theme_data('http://externalhost.com/style.css');
$latest_version = $data['Version'];
define('LATEST_VERSION', $latest_version);

这很好，我可以获取最新版本（get_theme_data 是 WordPress 函数），但问题是它将在我不想要的每个负载上执行。例如，我也不想只检查提交表单的时间。或者，我正在研究某种方法来缓存结果，或者每隔设定的时间检查版本？这样的事情可能吗？如何实现？

原文

I am writing a script where it checks for an updated version from an external server. I use this code in the config.php file to check for latest version.

$data = get_theme_data('http://externalhost.com/style.css');
$latest_version = $data['Version'];
define('LATEST_VERSION', $latest_version);

This is fine and I can fetch the latest version (get_theme_data is WordPress function) but the problem is that it will be executed on every single load which I do not want. I also do not want to only check when a form is submitted for example. Alternatively I was looking into some sort of method to cache the result or maybe check the version every set amount of hours? Is such thing possible and how?

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美人如玉 2024-11-23 21:17:09

在这里，让你轻松搞定。将您上次检查更新的时间存储在文件中。

function checkForUpdate() {
    $file = file_get_contents('./check.cfg', true);
    if ($file === "") {
        $fp = fopen('./check.cfg', 'w+');
        fwrite($fp, time() + 86400);
        fclose($fp);
    }
    if ((int)$file > time()) {
        echo "Do not updatE";
    } else {
        echo "Update";
        $fp = fopen('./check.cfg', 'w+');
        fwrite($fp, time() + 86400);
        fclose($fp);
    }
}

如果您愿意，显然可以使其更加安全/高效。

编辑：此功能将每天检查一次更新。

Here, gonna make it easy for you. Store the time you last checked for the update in a file.

function checkForUpdate() {
    $file = file_get_contents('./check.cfg', true);
    if ($file === "") {
        $fp = fopen('./check.cfg', 'w+');
        fwrite($fp, time() + 86400);
        fclose($fp);
    }
    if ((int)$file > time()) {
        echo "Do not updatE";
    } else {
        echo "Update";
        $fp = fopen('./check.cfg', 'w+');
        fwrite($fp, time() + 86400);
        fclose($fp);
    }
}

You can obviously make this much more secure/efficient if you want to.

Edit: This function will check for update once every day.

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