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shm_attach

shm_attach

(PHP 4, PHP 5, PHP 7)

shm_attach — Creates or open a shared memory segment

Description

resource shm_attach ( int $key [, int $memsize [, int $perm = 0666 ]] )

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 登录查看完整内容