Share data between cron-job and webserver executed PHP scripts

Question

The one below is a common way how a master and a child script do data sharing:

cron job -- schedule --> master script

HTTP request -- trigger --> child script

master script --> [database] <-- child script

But is it possible to them to share the data using any of these below, instead of the database?

• global variable
• system storage
• session storage
• memcache / apc / any other thing like these

Answer 1

1. global variable - no
2. system storage (from comments: this is command line) - no because that would involve one launching the other, and still be one-way...
3. session storage - yes, using named session, but this will resort to files by default (can be configured to use shm and then in-memory...)
4. memcached - yes
5. apc - yes, but will require explicit configuration to enable in cli sapi
6. files - yes. And to speed things up, you can use ramfs to store files in an in-memory filesystem.
7. sockets - yes (make one of the a listener and connect from another)
8. database - yes (why not, actually?)

In case i left anything out, you can search for php interprocess communication