Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Create a fifo special file (a named pipe)
posix_mkfifo(string $filenameint $permissions): bool
            unlink($this->fifoPath);



            
posix_mkfifo($this->fifoPath0600);



            
$stream fopen($this->fifoPath'r+');
        posix_mkfifo($this->fifoPath0600);



        
$stream fopen($this->fifoPath'r+');