php filegroup 函数
filegroup
（ PHP 4中， PHP 5中）
档案群组-获取filegroup
描述
国际档案群组（字符串$文件名）
获取的filegroup。所属组的ID中返回数值的格式，请使用posix_getgrgid （ ）来解决这个问题的一组名称。
参数
文件名
文件路径。
返回值
返回组编号的文件，或FALSE的情况下发生错误。所属组的ID中返回数值的格式，请使用posix_getgrgid （ ）来解决这个问题的一组名称。一旦失败，错误是返回。
实例
例如＃ 1调查小组的文件
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