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# posix_setegid

(PHP 4 >= 4.0.2, PHP 5)

posix_setegid -- Set the effective GID of the current process

## 说明

bool posix_setegid ( int gid )

Set the effective group ID of the current process. This is a privileged function and you need appropriate privileges (usually root) on your system to be able to perform this function.

## 参数

`gid`

  The group id.

## 返回值

如果成功则返回 `TRUE`，失败则返回 `FALSE`。

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