dio_close
    (PHP 4 >= 4.2.0, PHP 5 <= 5.0.4)
dio_close -- Closes the file descriptor given by fd
Description
void 
dio_close ( resource fd )
   The function dio_close() closes the file descriptor
   fd.
  
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); ?>
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