php sample code for SCIM edit extensions

is anyone can help me with php sample code to edit extension. I'm using PHP SDK.


$response = $platform->put('https://platform.devtest.ringcentral.com/scim/v2/Users/244580004', array(

"schemas" => "urn:ietf:params:scim:schemas:core:2.0:User",

"userName" => "first.last@mysite.com",

"active" => true

)

);

But it throws following error

Exception: 400 Bad Request (and additional error happened during JSON parse: Response is not JSON)  SDK HTTP Error at https://platform.devtest.ringcentral.com/scim/v2/Users/244580004  Response text: Can not deserialize instance of java.util.ArrayList out of VALUE_STRING token   at [Source: org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$UnCloseableInputStream@5871346f; line: 1, column: 12] (through reference chain: com.ringcentral.cim.model.User["schemas"])  Previous: Response has unsuccessful status

Thanks