在后台运行进程php

I have few cronjob that summarize data and validate data for my site. Some of them have processes that needs to be run in background.

Example:

cronjob1.php execute cronjob2.php using exec

This cronjob2.php runs another cronjob3.php using exec and cronjob3 needs to be completed then cronjob2 and then cronjob finish.

I currently have an issue where the cronjob1.php takes 2 hours to finish.

is there a better way to run this so it run faster?

Thank You

There is few things that you can do:

• make sure that your script use permanent connection, this way you won't loose time connecting and disconnecting from the database server.
• implement a logging mechanism, so you can identify which part of the script run slowly, logging the time spent on each database queries would be a good idea
• try to optimize your database as much as possible, you should use explain on slow queries and create the needed indexes.

if cronjob1 have many database operation than create store procedures for that and make indexing on most use table fields

this increase your cronjob performance....