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Can anyone tell me which function finally we should call to generate encrypted password from bellow link?

https://github.com/Criotin/phpfox/blob/master/PF.Src/Core/Hash.php

For example my password is " gauravjain "

how and which function i should use to finally generate encrypted password to save in dataase? I want to migrate old custom users to phpfox v4

can anyone give example code here using my example passowrd