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ftok

ftok

(PHP 4 >= 4.2.0, PHP 5)

ftokConvert a pathname and a project identifier to a System V IPC key

说明

int ftok ( string $pathname , string $proj )

The function converts the pathname of an existing accessible file and a project identifier into an integer for use with for example shmop_open() and other System V IPC keys.

参数

pathname

Path to an accessible file.

proj

Project identifier. This must be a one character string.

返回值

On success the return value will be the created key value, otherwise -1 is returned.

参见


  • ftok
  • msg_get_queue
  • msg_queue_exists
  • msg_receive
  • msg_remove_queue
  • msg_send
  • msg_set_queue
  • msg_stat_queue
  • sem_acquire
  • sem_get
  • sem_release
  • sem_remove
  • shm_attach
  • shm_detach
  • shm_get_var
  • shm_has_var
  • shm_put_var
  • shm_remove
  • shm_remove_var
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