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Hi Tian,
As mentioned in the guide:
This script will take care of receiving and storing encoding data lines in subfolders and one file per participant. It will also output back files where the lines have been decoded. You can directly visit it through your browser and type in the field that you see the “URL” key that was reported in your results file (something like httpsdomainofmyexperiment/pathtomyexperiment/vEry-l0ng-uniQu3-1dentif1er). Alternatively, you can directly append key at the end of the PHP script’s url (replacing key with the value from your results file) to get the output file — this is the method we will use in our analyses.
The R script in the guide uses the latter method (ETURL = ...EyeTracker.php?experiment=
) but you can directly visit the URL that points to your PHP file and enter the key from your results file in the input box to manually download a decrypted version of the file
Let me know if you have questions
Jeremy