Online PHP editor | output for g9ekn

@ 2017-02-07T22:11:02Z

<?PHP

class Question
{
    public function __construct(AnswerInterface $answer)
    {
        echo "What is 2 + 2?\n";
        $answer = $answer->get()->the()->answer();
        if ($answer instanceof AnswerInterface) {
            echo $answer . PHP_EOL;
        }
    }
}

interface AnswerInterface
{
    public function get();
    public function the();
    public function answer();
}

class Answer implements AnswerInterface{
    private $answer;
    public function get(){
        $this->answer = 2;
        return $this;
    }
    
    public function the(){
        $this->answer = $this->answer + 2;
        return $this;
    }
    
    public function answer(){
        return $this->answer;
    }
}


$answer = new Answer;
$question = new Question($answer);

Output for 7.3.32 - 7.3.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: What is 2 + 2?
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 What is 2 + 2?
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33: Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Answer has a deprecated constructor in /in/g9ekn on line 22 What is 2 + 2?

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