dio_truncate

    (PHP 4 >= 4.2.0, PHP 5 < 5.1.0)

    dio_truncate — Truncates file descriptor fd to offset bytes

    Description

    dio_truncate(resource $fd, int $offset): bool

    dio_truncate() truncates a file to at most offset bytes in size.

    If the file previously was larger than this size, the extra data is lost. If the file previously was shorter, it is unspecified whether the file is left unchanged or is extended. In the latter case the extended part reads as zero bytes.

    Parameters

    fd

    The file descriptor returned by dio_open().

    offset

    The offset in bytes.

    Return Values

    Returns true on success or false on failure.

    Notes

    Note: This function is not implemented on Windows platforms.

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