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)) {

Thanks in advance!


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