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run code in 150+ php & hhvm versions
Bugs & Features
<?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 { public function get() { return ""; } public function the() { return ""; } public function answer() { echo "4"; } } // end editing here $answer = new Answer; $question = new Question($answer);
Output for 7.0.0 - 7.1.0
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/OfYuM on line 28 4 Fatal error: Uncaught TypeError: Argument 1 passed to Question::__construct() must implement interface AnswerInterface, instance of Answer given, called in /in/OfYuM on line 47 and defined in /in/OfYuM:9 Stack trace: #0 /in/OfYuM(47): Question->__construct(Object(Answer)) #1 {main} thrown in /in/OfYuM on line 9
Process exited with code 255.
Output for hhvm-3.12.0
4 Catchable fatal error: Argument 1 passed to Question::__construct() must implement interface AnswerInterface, Answer given in /in/OfYuM on line -1
Process exited with code 255.
Output for hhvm-3.10.0
4 Catchable fatal error: Argument 1 passed to Question::__construct() must implement interface AnswerInterface, Answer given in /in/OfYuM on line 17
Process exited with code 255.
Output for 5.2.0 - 5.6.28
4 Catchable fatal error: Argument 1 passed to Question::__construct() must implement interface AnswerInterface, instance of Answer given, called in /in/OfYuM on line 47 and defined in /in/OfYuM on line 9
Process exited with code 255.
Output for 5.1.0 - 5.1.6
4 Fatal error: Argument 1 passed to Question::__construct() must implement interface AnswerInterface, called in /in/OfYuM on line 47 and defined in /in/OfYuM on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.5
4 Fatal error: Argument 1 must implement interface AnswerInterface in /in/OfYuM on line 9
Process exited with code 255.
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/OfYuM on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/OfYuM 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/OfYuM on line 9
Process exited with code 255.