Using this step allows you to run your own PHP code to do some calculations, however in this step you can display neither your operations nor the results.
The following simple example shows how your code could look like:
Using this Step, you can set the requirements for your experiment. Whether this experiment has to be taken using a PC or the participants could also use their mobile devices. The Process Requirementscheck Steptype is especially useful for online experiments, where you are not able to control the participants environment.
You can also specify the minimum connection speed of the participants or restrict the participants current location by country codes. It is also possible to select the browsers you allow for this experiment and to decide, if you need a camera to run this experiment successfully. In other cases the support of a Canvas is also required, if Canvas elements were used (most likely for Graphs).