Помогите привести строку к такому виду на php
Исходная строка
{"media":[{"type":"text","text":"Русский стиль"},{"type":"text","text":"Описание Русский стиль"},{ "type":"product","price":"8800.00","lifetime":30}]}
В запрос должно уходить такое экранирование
%7B%22media%22%3A%5B%7B%22type%22%3A%22text%22%2C%22text%22%3A%22%D0%A0%D1%83%D1%81%D1%81%D0%BA%D0%B8%D0%B9%20%D1%81%D1%82%D0%B8%D0%BB%D1%8C%22%7D%2C%7B%22type%22%3A%22text%22%2C%22text%22%3A%22%D0%9E%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5%20%D0%A0%D1%83%D1%81%D1%81%D0%BA%D0%B8%D0%B9%20%D1%81%D1%82%D0%B8%D0%BB%D1%8C%22%7D%2C%7B%20%22type%22%3A%22product%22%2C%22price%22%3A%228800.00%22%2C%22lifetime%22%3A30%7D%5D%7D
