(PHP 5 >= 5.1.2, PHP 7)
SplFileInfo::getGroup — Gets the file group
Gets the file group. The group ID is returned in numerical format.
此函数没有参数。
The group id in numerical format.
Throws RuntimeException on error.
Example #1 SplFileInfo::getGroup() example
<?php
$info = new SplFileInfo(__FILE__);
print_r(posix_getgrgid($info->getGroup()));
?>
以上例程的输出类似于：