string dbmnextkey(int 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:
Example 1. Visiting every key/value pair in a dbm database. $key = dbmfirstkey($dbm_id);
while ($key) {
echo "$key = " . dbmfetch($dbm_id, $key) . "\n";
$key = dbmnextkey($dbm_id, $key);
}
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