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    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, or null. If null passed, pri internally is set to EIO_PRI_DEFAULT.

    callback

    callback function 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 failure.

    See Also

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