<?php
/*
Challenge 2: Implement AnswerInterface and get Question to echo "4".
*/
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();
}
// start editing here
class Answer implements AnswerInterface
{
public function __construct() { echo "Trace..."; }
public function get() { return new Answer();}
public function the() { return new Answer();}
public function answer() { return 4;}
}
// end editing here
$answer = new Answer;
$question = new Question($answer);
Strict Standards: Redefining already defined constructor for class Answer in /in/nC9HO on line 34
Trace...What is 2 + 2?
Trace...Trace...
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/nC9HO on line 9
Process exited with code 255.
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/nC9HO on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/nC9HO on line 9
Process exited with code 255.