PHP encodes email address

Question

I need a PHP way to encode an email address using a-zA-Z0-9 , so it’s basically encoded without any special characters, but then you can decode it back to the original.

Example:

 [e-mail] => ENCODE => n6bvJjdh7w6QbdVB373483ydbKus7Qx n6bvJjdh7w6QbdVB373483ydbKus7Qx => DECODE => [e-mail] 

Is it possible?

Answer 1

You can make base64 web safe code:

 // encode $email_encoded = rtrim(strtr(base64_encode($email), '+/', '-_'), '='); // decode $email_decoded = base64_decode(strtr($email_encoded, '-_', '+/')); 

It converts + and / from base64 alphabet to safer - and _ . The encoding step also removes trailing = characters if necessary.

Answer 2

If you allow the equal sign, you can use base64_encode() and base64_decode()

Another option is bin2hex() and hex2bin()