Online PHP editor | output for WSpNf

<?php $json = '{"count":1,"workspaces":{"12220207":{"title":"34343 Add New","archived":false,"description":"","due_date":"","effective_due_date":"","start_date":"","budgeted":true,"change_orders_enabled":true,"updated_at":"2016-05-12T10:51:01-07:00","created_at":"2016-05-12T10:51:01-07:00","consultant_role_name":"FUEL","client_role_name":"Clients","percentage_complete":0,"access_level":"open","exclude_archived_stories_percent_complete":false,"can_create_line_items":true,"default_rate":"125.00","currency_symbol":"$","currency_base_unit":100,"can_invite":true,"has_budget_access":true,"tasks_default_non_billable":false,"rate_card_id":null,"workspace_invoice_preference_id":null,"posts_require_privacy_decision":false,"require_time_approvals":false,"require_expense_approvals":false,"stories_are_fixed_fee_by_default":false,"price":"TBD","price_in_cents":null,"budget_used":"$0","over_budget":false,"currency":"USD","expenses_in_burn_rate":true,"budget_used_in_cents":0,"total_expenses_in_cents":0,"status":{"color":"grey","message":"Not Started","key":130},"permissions":{"can_upload_files":true,"can_private_message":true,"can_join":false,"is_participant":true,"access_level":"admin","team_lead":true,"user_is_client":false},"creator_id":"6333747","id":"12220207"}},"results":[{"key":"workspaces","id":"12220207"}]}'; $arr = json_decode($json); echo $arr->workspaces->{12220207}->id;