Using an object in ExpressionLanguage

Code
<?php

use Symfony\Component\ExpressionLanguage\ExpressionLanguage;

class Foo
{
    public function __construct($value)
    {
        $this->value = (string) $value;
    }
    
    public function getValue()
    {
        return $this->value;
    }
}

$exprLang = new ExpressionLanguage();

$foo = new Foo('Bar');

$expr = 'foo.getValue() ~ " is the value."';

echo $exprLang->evaluate($expr, array(
    'foo' => $foo,
));
Result
Bar is the value.
Used Versions
PHP 8.3, Laminas MVC 3.2, Symfony 5.2, Laravel 8.28, PHPUnit 9.5, Doctrine ORM 2.8