The Symfony OptionsResolver component is an advanced replacement for the PHP array_replace function. It facilitates complex options system creation with support for required options, defaults, validation (by type or value), normalization amongst other features. These improvements over the standard array_replace function make it significantly more robust & flexible when dealing with data collections.
To begin using the symfony/options-resolver in a PHP environment, you need to first ensure the package is included in your project. This can be accomplished with Composer, as follows: composer require symfony/options-resolver.
The options resolver can be used to create an options system, define defaults, and define required options. Here's a simple example of how to use it:
use Symfony\Component\OptionsResolver\OptionsResolver;
$resolver = new OptionsResolver();
$resolver->setDefaults([
'default_option' => 'value',
]);
$resolver->setRequired([
'required_option',
]);
$options = $resolver->resolve([
'required_option' => 'value',
]);
The OptionsResolver first sets default options. These options will be merged with the options passed into the resolve method. After that, it sets required options. If these options are not present when the resolve method is called, a MissingOptionsException will be thrown.
You can find comprehensive options-resolver documentation on the Symfony's official documentation page. This documentation covers installation, usage examples, contribution guidelines, and how to report issues. Expand your knowledge of symfony/options-resolver and its applications by referencing the Symfony docs to fully exploit this powerful tool in your PHP development.
