eio_truncate
(PECL eio >= 0.0.1dev)
eio_truncate — Truncate a file
Description
eio_truncate ( string $path [, int $offset = 0 [, int $pri = EIO_PRI_DEFAULT [, callable $callback = NULL [, mixed $data = NULL ]]]] ) : resource
eio_truncate() causes the regular file named by path to be truncated to a size of precisely length bytes
Parameters
-
path -
File path
-
offset -
Offset from beginning of the file.
-
pri -
The request priority:
EIO_PRI_DEFAULT,EIO_PRI_MIN,EIO_PRI_MAX, ornull. Ifnullpassed,priinternally is set toEIO_PRI_DEFAULT. -
callback -
callbackfunction is called when the request is done. It should match the following prototype:void callback(mixed $data, int $result[, resource $req]);
-
data -
is custom data passed to the request.
-
result -
request-specific result value; basically, the value returned by corresponding system call.
-
req -
is optional request resource which can be used with functions like eio_get_last_error()
-
-
data -
Arbitrary variable passed to
callback.
Return Values
eio_busy() returns request resource on success or false on error.
See Also
- eio_ftruncate() - Truncate a file
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.eio-truncate.php