Fixed license code validation on 32-bit machines

[rinodrummer]

Recently I mailed @tabacitu about a problem with the validation of a license code I purchased.

Even if the license code was correct, the validation function continued to show the unlicensed software notification on production.

After reading about the functions used in the script, Tabacitu noticed that the problem should have been related to the different value returned by crc32() on a 32-bit OS architecture which my hosting provider uses.

Following the instructions on the documentation page about that function, we figured out that the solution was using a combination of hexdec() and hash() function to simulate the crc32() algorithm.

[scrutinizer-notifier]

The inspection completed: No new issues

[tabacitu]

Excellent! Thank you so much for the patience & help with this @rinodrummer ! I've also added an extra check on top of your PR - let me know if that breaks it for you in any way (it shouldn't, it only uses simple methods).

This will be available with the next patch update, most likely later today.
Cheers!