getRootNode(); $rootNode ->addDefaultsIfNotSet() ->children() ->scalarNode('length')->defaultValue(5)->end() ->scalarNode('width')->defaultValue(130)->end() ->scalarNode('height')->defaultValue(50)->end() ->scalarNode('font')->defaultValue(__DIR__.'/../Generator/Font/captcha.ttf')->end() ->scalarNode('keep_value')->defaultValue(false)->end() ->scalarNode('charset')->defaultValue('abcdefhjkmnprstuvwxyz23456789')->end() ->scalarNode('as_file')->defaultValue(false)->end() ->scalarNode('as_url')->defaultValue(false)->end() ->scalarNode('reload')->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() ->scalarNode('quality')->defaultValue(50)->end() ->scalarNode('invalid_message')->defaultValue('Bad code value')->end() ->scalarNode('bypass_code')->defaultValue(null)->end() ->scalarNode('whitelist_key')->defaultValue('captcha_whitelist_key')->end() ->scalarNode('humanity')->defaultValue(0)->end() ->scalarNode('distortion')->defaultValue(true)->end() ->scalarNode('max_front_lines')->defaultValue(null)->end() ->scalarNode('max_behind_lines')->defaultValue(null)->end() ->scalarNode('interpolation')->defaultValue(true)->end() ->arrayNode('text_color')->prototype('scalar')->end()->end() ->arrayNode('background_color')->prototype('scalar')->end()->end() ->arrayNode('background_images')->prototype('scalar')->end()->end() ->scalarNode('disabled')->defaultValue(false)->end() ->scalarNode('ignore_all_effects')->defaultValue(false)->end() ->scalarNode('session_key')->defaultValue('captcha')->end() ->end() ; return $treeBuilder; } }