# dio_close

(PHP 4 >= 4.2.0, PHP 5 <= 5.0.5)

dio_close — Closes the file descriptor given by fd

### Description

void dio_close ( resource `$fd` )

The function dio_close() closes the file descriptor `fd` .

### Parameters

`fd`

  The file descriptor returned by dio_open().

### Return Values

No value is returned.

### Examples

Example#1 Closing an open file descriptor

`<?php
$fd = dio_open('/dev/ttyS0', O_RDWR);
dio_close($fd);
?>`

### See Also

- dio_open()