posix_ttyname

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

    posix_ttyname — Determine terminal device name

    说明

    posix_ttyname(resource|int$file_descriptor): string|false

    Returns a string for the absolute path to the current terminal device that is open on the file descriptor file_descriptor.

    参数

    file_descriptor

    The file descriptor, which is expected to be either a file resource or an int. An int will be assumed to be a file descriptor that can be passed directly to the underlying system call.

    返回值

    On success, returns a string of the absolute path of the file_descriptor. On failure, returns false

    错误／异常

    On invalid file_descriptor integer values an E_WARNING is raised.

    更新日志

    版本说明
    8.3.0 Type error E_WARNINGs are now raised for integer coercions following the usual PHP type coercion semantics.
    8.3.0 On invalid file_descriptor integer values an E_WARNING is now raised.

    参见

    To Top