# posix_kill

(PHP 4, PHP 5, PHP 7)

posix_kill — Send a signal to a process

### 说明

posix_kill ( int `$pid` , int `$sig` ) : bool

Send the signal `sig` to the process with the process identifier `pid`.

### 参数

`pid`

  The process identifier.

`sig`

  One of the PCNTL signals constants.

### 返回值

成功时返回 `TRUE`， 或者在失败时返回 `FALSE`。

### 参见

- The kill(2) manual page of the POSIX system, which contains additional information about negative process identifiers, the special pid 0, the special pid -1, and the signal number 0.