PHP? Forms Data Encryption Solution

PHP? form data Encryption

var json = encodeURI (json.stringify (data));

How to  Encrypt json.stringify (data).

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Although JS can be used to implement a variety of cryptographic algorithms, but JS is interpreted to execute, so the encryption process is presented in front of the user. So encryption is just a decoration.
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The user can see the JS code, so JS do encryption is useless
Unless you confuse the JS code with something that he can't see ...

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