Is CRON'd PHP script already running?
| From: | Simon Kimber | Date: | Thu, 20 Sep 2001 17:13:14 +0000 |
| Subject: | Is CRON'd PHP script already running? | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-68022@lists.php.net to get a copy of this message | ||
Hi All,
I have a PHP script that i want to run every few minutes (via cron) but I
only want it to run if it isn't already running.
Is there something in cron itself to solve this or is there a way within PHP
to detect that another instance of the current script is running and if so
exit the new instance before it does anything...
eg. I could have a function to use like so:
if (already_running($SCRIPT_NAME)) {
exit();
}
Thanks in advance!
Simon