bool dba_replace(string key, string value, int handle);dba_replace() replaces or inserts the entry described with key and value into the database specified by handle.
key is the key of the entry to be inserted.
value is the value to be inserted.
handle is a database handle returned by dba_open().
dba_replace() returns true or false, depending on whether it succeeds of fails, respectively.
See also: dba_exists() dba_delete() dba_fetch() dba_insert()