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<?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(); } // start editing here class Answer implements AnswerInterface { public function get(){ return $this; } public function the(){ return $this; } public function answer(){ return $this; } } // end editing here $answer = new Answer; $question = new Question($answer);
Output for 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/XfHoR on line 23 What is 2 + 2? Recoverable fatal error: Object of class Answer could not be converted to string in /in/XfHoR on line 10
Process exited with code 255.
Output for 7.0.0 - 7.0.14
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/XfHoR on line 23 What is 2 + 2? Catchable fatal error: Object of class Answer could not be converted to string in /in/XfHoR on line 10
Process exited with code 255.
Output for 5.2.3 - 5.6.28
What is 2 + 2? Catchable fatal error: Object of class Answer could not be converted to string in /in/XfHoR on line 10
Process exited with code 255.
Output for 5.2.0 - 5.2.2
What is 2 + 2? <br /> <b>Catchable fatal error</b>: Object of class Answer could not be converted to string in <b>/in/XfHoR</b> on line <b>10</b><br />
Process exited with code 255.
Output for 5.0.2 - 5.1.6
What is 2 + 2? Object id #1
Output for 5.0.0 - 5.0.1
What is 2 + 2? Object id #1PHP_EOL
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/XfHoR</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/XfHoR</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/XfHoR</b> on line <b>4</b><br />
Process exited with code 255.