Закодировать в json по-человечески

<?php
echo json_encode(
  ['Hello'=>'Вор/лд', 'say'=>['something', 1, 2, 3]])."\n";

echo json_encode(
  ['Hello'=>'Вор/лд', 'say'=>['something', 1, 2, 3]],
  JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);

{"Hello":"\u0412\u043e\u0440\/\u043b\u0434","say":["something",1,2,3]}
{
    "Hello": "Вор/лд",
    "say": [
        "something",
        1,
        2,
        3
    ]
}