How to determine in a php script that it was launched by Cron?

Question

linux

How to determine in a php script that it was launched by Cron?

Answer 1

Pass it an input parameter, such as -cron .

Answer 2

As far as I know, when running "manually" the $_SERVER['argc'] and $_SERVER['argv'] variables appear, and other user environment variables also appear.
Hence:

if (isset($_SERVER['argc']) && isset($_SERVER['argv'])) {
    define('SELFSERVICE', 1);
}

if (defined('SELFSERVICE')) {
    echo "I'm a service";
} else {
    echo "I'm a web-dispatcher";
}

Well, or run the script via http request
curl "http://name.site/script.php?cron=1"

Answer 3

Look at the output
of phpinfo();
for the case when it is opened in the crown and for the case when it is opened through the web server.
And choose for yourself the parameter(s) by which you will determine
For example, like this:
$isCron = !isset($_ENV['SSH_CLIENT']);
But it may depend on the system