https://gist.github.com/samdark/6488056
https://gist.github.com/samdark/6488060

```
objects.php

Done in: 0.005024 s
Memory used: 512 KB 

scalars.php

Done in: 0.002922 s
Memory used: 256 KB 
```

Memory usage and execution time are doubled in case of object wrappers in case there are only 2 private members. If there are more then more memory will be used. Absolute numbers aren't that bad in both cases, still overall framework performance consists of many small decisions.