Switch the PHP runtime version
Switches the sandbox’s PHP runtime (async switch_php_version job; the worker recreates the container on the new image and rolls back to the previous version if the new one fails to come up healthy — the site record’s phpVersion is only updated on success). The sandbox must be ready.
Authorizations
Personal API token, sent as Authorization: Bearer <SANDYWP_API_KEY>. Obtain one from the dashboard account menu (API keys), sandywp auth login, or POST /api/account/tokens. A missing or invalid token returns 401 auth_required. Scoped OAuth tokens are limited to the Imports family and GET /api/account/me; see the top-level conventions.
Headers
Selects which of the caller's workspaces to act in, for accounts belonging to more than one (legacy alias: X-SandyWP-Organization). Defaults to the caller's own personal workspace when omitted. Every id in this API (sandboxes, Templates, repositories) is scoped to a single workspace, so this header changes which set of resources is visible.
Path Parameters
The sandbox id.
Body
8.3, 8.2, 8.1 
