I need to write a PHP Script to use with a Crontab. That Crontab will run every 10 minutes.
I should use pcntl_fork() to prevent concurrency in database queries, but I don't have sure how to use this PHP function.
The reason for use this function is to prevent that if the Crontab don't do the Job in 10 minutes, the next Cronjob will not concur with the job in the background that is running.
My question. There are PostgreSQL examples on how to use this function to prevent database concurrency?