posix_mkfifo
(PHP 4, PHP 5, PHP 7, PHP 8)
posix_mkfifo — Create a fifo special file (a named pipe)
Description
posix_mkfifo(string
$filename, int $permissions): bool
posix_mkfifo() creates a special
FIFO file which exists in the file system and acts as
a bidirectional communication endpoint for processes.
Parameters
-
filename -
Path to the
FIFOfile. -
permissions -
The second parameter
permissionshas to be given in octal notation (e.g. 0644). The permission of the newly createdFIFOalso depends on the setting of the current umask(). The permissions of the created file are (mode & ~umask).
Return Values
Returns true on success or false on failure.
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