posix_mkfifo
Function • Params and return types changed in PHP 8.0
Create a fifo special file (a named pipe).
posix_mkfifo Function synopsis
posix_mkfifo(string $filename, int $permissions): boolParameters
$filename
Typestring
Path to the FIFO file.
$permissions
Typeint
The second parameter $permissions has to be given in
octal notation (e.g. 0644). The permission of the newly created
FIFO also depends on the setting of the current
umask. The permissions of the created file are
(mode & ~umask).
Return value
Typebool
Returns true on success, false on failure
Changes to the posix_mkfifo Function
PHP 8.0
- Return type added:
bool - Parameter name of parameter #1 changed:
$pathnameto$filename - Parameter type added for parameter #1 (
$filename):string - Parameter name of parameter #2 changed:
$modeto$permissions - Parameter type added for parameter #2 (
$permissions):int
- posix_mkfifo($pathname, $mode)
+ posix_mkfifo(string $filename, int $permissions): boolposix_mkfifo Function Availability
posix_mkfifo Function Availability| PHP Version | Availability |
|---|---|
| PHP 8.6Upcoming Release | Yes |
| PHP 8.5Supported (Latest) | Yes |
| PHP 8.4Supported | Yes |
| PHP 8.3Security-Fixes Only | Yes |
| PHP 8.2Security-Fixes Only | Yes |
| PHP 8.1Unsupported | Yes |
| PHP 8.0Unsupported | Yes |
| PHP 7.4Unsupported | Yes |
| PHP 7.3Unsupported | Yes |
| PHP 7.2Unsupported | Yes |
| PHP 7.1Unsupported | Yes |
| PHP 7.0Unsupported | Yes |
| PHP 5.6Unsupported | Yes |
| PHP 5.5Unsupported | Yes |
| PHP 5.4Unsupported | Yes |
| PHP 5.3Unsupported | Yes |