Robert Stoll, an ICT student from Switzerland is researching type safety in PHP for his undergraduate study. This is a very interesting topic and he wants to see how the community deals with this in its day to day development.
The deliverables of the research will be provided in an Open Source Project at the conclusion of the research.
If you want to help, all he needs is 5 to 20 minutes of your time to answer a survey.
More about the project TSPHP.