(PHP 4)
dbmnextkey —
Returns the next key after key .
The DBM link identifier, returned by dbmopen().
The previous key
The next key if possible
By calling dbmfirstkey() followed by successive calls to dbmnextkey() it is possible to visit every key/value pair in the dbm database. For example:
Example#1 Visiting every key/value pair in a DBM database
<?php
$key = dbmfirstkey($dbm_id);
while ($key) {
echo "$key = " . dbmfetch($dbm_id, $key) . "\n";
$key = dbmnextkey($dbm_id, $key);
}
?>