PhpResource represents PHP's
resource type in general. It serves as a base type for all the resource instances within the PHP program.
|Id||The resource's unique identifier. Corresponds to PHP's resource ID.|
|TypeName||The actual resource name according to PHP semantics.|
|IsValid||Gets the value indicating the resource is valid and not disposed.|
The type is well known to the runtime in order to provide the
is_resource() functionality and to clean up resources safely upon the request's end.
Some library functions require an argument of type
PhpResource that is further converted to a specific