root('gregwar_captcha', 'array'); $rootNode ->addDefaultsIfNotSet() ->children() ->scalarNode('length')->defaultValue(5)->end() ->scalarNode('width')->defaultValue(120)->end() ->scalarNode('height')->defaultValue(40)->end() ->scalarNode('charset')->defaultValue('abcdefhjkmnprstuvwxyz23456789')->end() ->scalarNode('as_file')->defaultValue(false)->end() ->scalarNode('image_folder')->defaultValue('captcha')->end() ->scalarNode('web_path')->defaultValue('%kernel.root_dir%/../web')->end() ->scalarNode('gc_freq')->defaultValue(100)->end() ->scalarNode('expiration')->defaultValue(60)->end() ->end() ; return $treeBuilder; } }