Yaf_Config_Ini::next

<?php
/**
 * Assume /etc/myapp/application.ini contains:
 * [common]
 * application.name = "MyApp"
 * version          = "1.0"
 */
$config = new Yaf_Config_Ini('/etc/myapp/application.ini', 'common');

$config->rewind();
echo $config->key(), "\n";

$config->next();
echo $config->key(), "\n";

$config->next(); // past the last entry
var_dump($config->valid());
?>

application
version
bool(false)