Retrieves the next key from a DBM database (PHP 3, PHP 4, PECL)
string dbmnextkey ( resource dbm_identifier, string key )

Returns the next key after key. By calling dbmfirstkey() followed by successive calls to dbmnextkey() it is possible to visit every key/value pair in the dbm database. For example:

例 433. Visiting every key/value pair in a DBM database


= dbmfirstkey($dbm_id);
while (
$key) {
"$key = " . dbmfetch($dbm_id, $key) . "\n";
$key = dbmnextkey($dbm_id, $key);