prepare("DELETE from `pastes` where `expire`<:time and `expire`>0"); $stmt->bindValue(':time', $time); $stmt->execute(); $conn = null; //close connection to database echo 'OK! 200'; } } //Cron job example: */5 * * * * curl --silent http://127.0.0.1/paste/cronjob.php?key=b1g51bf6g > /dev/null //More about cron jobs: http://www.shellhacks.com/en/Adding-Cron-Jobs-in-Linux-Crontab-Usage-and-Examples ?>