(PHP 4, PHP 5)
dba_replace — Replace or insert entry
dba_replace() replaces or inserts the entry described with key and value into the database specified by handle.
The key of the entry to be replaced.
The value to be replaced.
The database handler, returned by dba_open() or dba_popen().
成功时返回 TRUE, 或者在失败时返回 FALSE.