use Webmozart\CValue\CValue; define('PI', CValue::fromFloat(3.14));
use Webmozart\CValue\CValue; if (CValue::exists('PI')) { // do something }
use Webmozart\CValue\CValue; $value = CValue::fromString('PI')->getValue();In this example, we retrieve the value of the constant "PI" using the CValue::fromString method and the getValue method. Package/Library: The CValue library is a part of the Webmozart library, which provides a set of PHP components for building web applications.