PHP supports the direct io functions as described in the Posix
Standard (Section 6) for performing I/O functions at a lower
level than the C-Language stream I/O functions
(fopen(), fread(),..). The use
of the DIO functions should be considered only when direct
control of a device is needed. In all other cases, the standard
filesystem functions are more
than adequate.
Note: This extension is not
available on Windows platforms.
No external libraries are needed to build this extension.
To get these functions to work, you have to configure PHP with
--enable-dio.
This extension has no configuration directives defined in php.ini.
One resource type is defined by this extension:
a file descriptor returned by dio_open().
This extension has no constants defined.
