# socket_shutdown

(PHP 4 >= 4.1.0, PHP 5, PHP 7)

socket_shutdown — Shuts down a socket for receiving, sending, or both

### 说明

socket_shutdown ( resource `$socket` [, int `$how` = 2 ] ) : bool

The socket_shutdown() function allows you to stop incoming, outgoing or all data (the default) from being sent through the `socket`

> Note:

> The associated buffer, or buffers, may or may not be emptied.

### 参数

`socket`

  A valid socket resource created with socket_create().

`how`

  The value of `how` can be one of the following:

  possible values for `how`
  0 | Shutdown socket reading
  1 | Shutdown socket writing
  2 | Shutdown socket reading and writing

### 返回值

成功时返回 `TRUE`， 或者在失败时返回 `FALSE`。