&reftitle.setup;

&reftitle.required; PHP 7 is required by both the extension and the compatibility polyfill.

&reftitle.install; The easiest way to install the extension is via PECL You can also build directly from source: If you're using Composer, it's highly recommended that you include php-ds/php-ds in your project so that your code is still functional in an environment where the extension is not installed. The extension will take priority if installed.