Get your own PHP server
<!DOCTYPE html>
<html>
<body>

<?php
$jsonobj = '{"Peter":35,"Ben":37,"Joe":43}';
 
var_dump(json_decode($jsonobj, true));
?>

</body>
</html>

              
array(3) { ["Peter"]=> int(35) ["Ben"]=> int(37) ["Joe"]=> int(43) }