如何在过期时删除一些文件（PHP，MySQL）？

Question

I store some files in a folder and add file_name and expire_time to database.

How to delete files after expire time without running php code continual?

Answer 1

1. Use CRON http://en.wikipedia.org/wiki/Cron (simplier version of this service is included to many www hosting offers [it should be in www administration panel - you don't need dedicated server/know linux], but most of them limit CRON to 1 run per hour or even 1 run per day).
2. To your main site index.php include code that get from database files that expired and remove them. This method does not require CRON, but uses much more resources and may not work if your site is not popular [delete one time per day? week?].