dba_firstkey

(PHP 3 >= 3.0.8, PHP 4, PHP 5)

dba_firstkey -- Fetch first key

说明

string dba_firstkey ( resource handle )

dba_firstkey() returns the first key of the database and resets the internal key pointer. This permits a linear search through the whole database.

参数

handle

The database handler, returned by dba_open() or dba_popen().

返回值

Returns the key on success, or FALSE on failure.


add a note add a note User Contributed Notes
psycho-logic at excite dot com
22-Oct-2003 08:38
Looks like Jacky is using some DB object? I don't know if it's native to PHP or written on it's own... Anyways this is what I use:

$DBCon = dba_open("/tmp/test_db.db2", "r", "db2") or die("Uh oh, can't open the database :(");
if ($the_key = dba_firstkey($DBCon)) do {
   print("Key: $the_key    Value:");
   print dba_fetch($the_key, $DBCon);
   print("<BR>");
} while ($the_key = dba_nextkey($DBCon));
print ("<BR><BR><BR>Well looks like we're done here :-)");
jacky dot jackyhung dot net
17-Jan-2002 09:17
for ($key = dba_firstkey($this->handle); $key !== false; $key = dba_nextkey($this->handle)) {
           $keyset[] = $key;
       } // end for