TEMP : try to use print_r with correct parameters, and add json_encode

Source/API/script/index.php

@@ -40,7 +40,7 @@ try{
                 }
             }
             $temp = array('response' => "Rien", 'test' => "Test Ici");
-            $response->getBody()->write(print_r($temp,true));
+            $response->getBody()->write(json_encode(print_r($temp,true)));
             //return $response;
             return $response->withHeader('Content-type', 'application/json');
         });