计划脚本而不使用CRON [英] Schedule scripts without using CRON

问题描述

我知道有很多关于使用CRON运行php文件的帖子。但是，在共享主机和为用户设置的简易性的世界，我不想被混淆。

I know there are many posts about using CRON to run a php file. But, in the world of shared hosting, and ease of setup for a user, I don't want to have to mess with that.

我在网上找到另一个解决方案与套接字有关。只是想让每个人都接受这一点，告诉我，如果这是一个好或坏的主意。听起来效果很好。

I found another solution online that has to do with sockets. Just wanted to get everyones take on this, and tell me if this is a good or bad idea. Sounds like it works well.

想法？

//Open socket connection to cron.php
$socketcon = fsockopen($_SERVER['HTTP_HOST'],80,$errorno,$errorstr,10);
if($socketcon) {
$socketdata = "GET /cron.php HTTP 1.1\r\nHost: ".$_SERVER['HTTP_HOST']."\r\nConnection: Close\r\n\r\n";
fwrite($socketcon,$socketdata);
//Normally you would get all the data back with fgets and wait until $socketcon reaches feof.
//In this case, we just do this:
fclose($socketcon);
} else {
//something went wrong. Put your error handler here.
}

cron.php：

//This script does all the work.
sleep(200);
//To prove that this works we will create an empty file here, after the sleep is done.
//Make sure that the webserver can write in the directory you're testing this file in.
$handle = fopen('test.txt','w');
fclose($handle);

通过博文找到脚本： http://syn.ac/tech/13/creating-php-cronjobs-without-cron-和-php-cli /

推荐答案

这不是一个坏方法，但你需要确保，套接字它不只是终止脚本，在它完成之前。您可以将套接字设置为非阻塞。

It's not a bad method, but you need to ensure that by closing the socket it isn't just terminating the script before it finishes. You can set sockets to non-blocking.

我仍然会使用cron作业，即使这有点痛苦。

I would still use a cron job, even if it is a bit of a pain.

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