blancks/fast-jsonpatch-php: Class designed to handle JSON Patch operations in accordance with the RFC 6902 specification
JSON, API, Collectionsremorhaz/php-json-path: JSONPath implementation in PHP.
Galbar/JsonPath-PHP: A JsonPath implementation in PHP
neilflatley/jsonpath-mapper: A json to json transformation utility with a few nice features to use when translating for example API responses into a domain object for use in your domain-driven JavaScript applications