(PHP 5)
sqlite_has_prev(no version information, might be only in CVS)
SQLiteResult->hasPrev -- Returns whether or not a previous row is availableObject oriented style (method):
class SQLiteResult {sqlite_has_prev() returns TRUE if there are more previous rows available from the result handle, or FALSE otherwise;
注: This function cannot be used with unbuffered result handles.
See also sqlite_prev(), sqlite_has_more(), and sqlite_num_rows().