Data-type mapping
From PHP to DBUS
boolean -> boolean
integer -> int32
double -> double
string -> string
array -> array (only basic types as values are supported)
DbusByte, DbusBool, DbusInt16, DbusUInt16, DbusInt32, DbusUInt32, DbusInt64, DbusUInt64, DbusDouble
DbusArray( int $type, array $elements [, string $signature] )
DbusDict( int $type, array $elements )
DbusVariant( mixed $data )
DbusStruct( string $signature, array $elements )
DbusSet( array $elements )
DbusObjectPath( string $path )