「File::copy_dir」 File security permissions

[Himakuma]

・Not copy file security permissions.
・Copy directory security permissions.

public static function copy($path, $new_path, $source_area = null, $target_area = null)
{
    $path      = static::instance($source_area)->get_path($path);
    $new_path  = static::instance($target_area ?: $source_area)->get_path($new_path);

    if ( ! is_file($path))
    {
        throw new \InvalidPathException('Cannot copy file: given path: "'.$path.'" is not a file.');
    }
    elseif (file_exists($new_path))
    {
        throw new \FileAccessException('Cannot copy file: new path: "'.$new_path.'" already exists.');
    }
    return copy($path, $new_path);　←←←←←←←←←←←←← Why not copy file security permissions?
}

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public static function copy($path, $new_path, $source_area = null, $target_area = null)
{
    $path      = static::instance($source_area)->get_path($path);
    $new_path  = static::instance($target_area ?: $source_area)->get_path($new_path);

    if ( ! is_file($path))
    {
        throw new \InvalidPathException('Cannot copy file: given path: "'.$path.'" is not a file.');
    }
    elseif (file_exists($new_path))
    {
        throw new \FileAccessException('Cannot copy file: new path: "'.$new_path.'" already exists.');
    }
    if (copy($path, $new_path)) {
        return chmod($new_path, fileperms($path)); 
    }
    return false;
}

[WanWizard]

Does that always succeed? Or is there a chance of the chmod failing, in which case a try/catch block is needed to handle the failure.

[Himakuma]

I am Japanese.
Sorry. I am not good at English.
Code is sample.

OK:Copy directory security permissions.
Bug:Not copy file security permissions.

Why copy authority the directory only?

[WanWizard]

I understand that.