use Symfony\Component\Config\Definition\ConfigurationInterface; use Symfony\Component\Config\Definition\Builder\TreeBuilder; use Symfony\Component\Config\Definition\Processor; class MyConfiguration implements ConfigurationInterface { public function getConfigTreeBuilder() { $treeBuilder = new TreeBuilder('my_config'); $rootNode = $treeBuilder->getRootNode(); $rootNode ->children() ->arrayNode('my_array') ->isRequired() ->prototype('array') ->children() ->integerNode('my_integer')->isRequired()->end() ->scalarNode('my_string')->isRequired()->end() ->end() ->end() ->end() ->integerNode('my_integer')->isRequired()->end() ->scalarNode('my_string')->isRequired()->end() ->end(); return $treeBuilder; } } $config = new MyConfiguration(); $processor = new Processor(); $processedConfig = $processor->processConfiguration($config, $myConfigArray); file_put_contents('/path/to/file.yml', Yaml::dump($processedConfig));In this example, we defined a configuration schema using the TreeBuilder and the ConfigurationInterface. We then used the Processor to validate and merge our configuration array against the schema. Finally, we wrote the result to a YAML file using the Yaml class. Overall, the Symfony Config component provides a powerful and flexible way to manage configuration files in PHP.