shm_attach(PHP 4, PHP 5) shm_attach — Creates or open a shared memory segment Description
int shm_attach
( int $key
[, int $memsize
[, int $perm
]] )
shm_attach() returns an id that can be used to access the System V shared memory with the given key , the first call creates the shared memory segment with memsize and the optional perm-bits perm . A second call to shm_attach() for the same key will return a different shared memory identifier, but both identifiers access the same underlying shared memory. memsize and perm will be ignored. Parameters
Return ValuesReturns a shared memory segment identifier. |
