使用PHP传递重要数据时

Question

When passing data to another PHP script using Get or Post, should I encrypt it with a MD5 with salt? or is there a better way to do it?

Answer 1

What kind of data? MD5 isn't an encryption function, it's a hashing function--once you MD5 it there's no "unencrypt," you can't get the original data back.

If you're transmitting critical data (e.g. credit card, bank account, or social security numbers) you should use a secure SSL connection (i.e. HTTPS).