ftok
PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8
ftok - Convert a pathname and a project identifier to a System V IPC key
Manual
ftok(
string$filename,
string$project_id ): int
The function converts the filename 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
- filename
-
Path to an accessible file.
- project_id
-
Project identifier. This must be a one character string.
Return Values
On success the return value will be the created key value, otherwise -1 is returned.