ftok()

ftok - Convert a pathname and a project identifier to a System V IPC key

Syntax

int ftok (string $pathname, string $proj)

Arguments

• pathname - Path to an accessible file.
• proj - Project identifier. This must be a one character string.

Description

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

Version

PHP 4.2.0, 5

Return value

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