php convert array to json

<?php
$myArr = array(
    "Name" => "Ambiorix",
    "Lastname" => "Rodriguez",
         "age" => 35,
         "ocupation" =>array('lawyer','IT Manager')
);
//array to json
$myJSON = json_encode($myArr);

echo $myJSON;

echo "<br>";
//json to array
print_r(json_decode($myJSON,true ));