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posix_mkfifo

(PHP 4, PHP 5, PHP 7, PHP 8)

posix_mkfifoCreate a fifo special file (a named pipe)

說(shuō)明

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.

參數

filename

Path to the FIFO file.

permissions

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).

返回值

成功時(shí)返回 true, 或者在失敗時(shí)返回 false。

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