The following links should all have the query string ?P=5%B02%27.

example.com/query?P=5%B02%27

example.com/query?P=5�2'

link

www.example.com/query?P=5%B02%27

www.example.com/query?P=5�2'

link

http://www.example.com/query?P=5%EF%BF%BD2%27

http://www.example.com/query?P=5�2'

link

https://www.example.com/query?P=5%EF%BF%BD2%27

https://www.example.com/query?P=5�2'

link