dio_close

Closes the file descriptor given by fd (PHP 4 >= 4.2.0, PHP 5 <= 5.0.4)
void dio_close ( resource fd )

The function dio_close() closes the file descriptor fd.

参数

fd

The file descriptor returned by dio_open().

返回值

无返回值。

范例

例 445. Closing an open file descriptor

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

dio_close($fd);
?>