APC cache apc_store apc_fetch behavior on Apache

[another-coder]

Is APC cache memory shared by all apache httpd child processes or does
each httpd process have its own APC cache memory?

If I call apc_add('foo','bar') from httpd child 1
And later call apc_fetch('foo') from httpd child 2 (a different linux
process)
will the apc_fetch return 'bar' ?

I could not find any PHP APC documentation which would answer this
question.

another-coder