Results for PHP 7

[stof]

PHP 7 changed the JSON parser it uses, compared to PHP 5. So it would be great to update the result table to include results for PHP 7 as well.

[stof]

Actually, it looks like http://seriot.ch/json/parsing.html#41 has PHP 5.6 and PHP 7.0 in the image at the beginning, but not in the list of results by parser.