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# dio_close

(PHP 4 >= 4.2.0, PHP 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.

See also dio_open().

Exemplo 1. Closing an open file descriptor
`<?php $fd = dio_open('/dev/ttyS0', O_RDWR); dio_close($fd); ?>`

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