Best encryption/decryption with salt in PHP 7 [duplicate]

Question

I am looking for the simplest and secured way to encrypt/decrypt a string with a specific salt in PHP7

my string + specific salt = encryped data 
decode(encryped data) = my string

I saw this post, but mcrypt_encrypt seems to be deprecated. Do you have any other suggestion or example ? Thank you

Answer 1

OpenSSL functions are a good way to go. Official docs here:

• http://php.net/manual/es/function.openssl-encrypt.php
• http://php.net/manual/es/function.openssl-decrypt.php

Hope it helps!