ftok

(PHP 4 >= 4.2.0, PHP 5, PHP 7)
Convert a pathname and a project identifier to a System V IPC key
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.

Parameters:
pathname

Path to an accessible file.

proj

Project identifier. This must be a one character string.

Returns:

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

See also:

shmop_open() -

sem_get() -

doc_php
2016-02-24 16:05:32
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