Shared Memory
PHP Manual

Увод

Shmop is an easy to use set of functions that allows PHP to read, write, create and delete Unix shared memory segments.

Забележка: Versions of Windows previous to Windows 2000 do not support shared memory. Under Windows, Shmop will only work when PHP is running as a web server module, such as Apache or IIS (CLI and CGI will not work).

Забележка: In PHP 4.0.3, these functions were prefixed by shm rather than shmop.


Shared Memory
PHP Manual