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@ 2021-10-12T23:00:09Z

<?php

declare(strict_types=1);

class SensitiveInfo
{

    private $cipher = "AES-256-CBC";

    private $secret_key = "fj239fDSDf932kk21c";
    private $secret_iv = "3fn4d2k3j3nxdlpo32";

    private $options = 0;

    private $iv = null;


    public function __construct()
    {
        $this->secret_key = hash('sha256', $this->secret_key);
        $this->iv = substr(hash('sha256', $this->secret_iv), 0, 16);

    }//end __construct()


    public function hide(string $str): string
    {
        return base64_encode(openssl_encrypt(
            $str, $this->cipher, $this->secret_key, $this->options, $this->iv
        ));

    }//end maskData()


    public function unhide(string $str)
    {     
        $str = base64_decode($str);
        return openssl_decrypt(
            $str, $this->cipher, $this->secret_key, $this->options, $this->iv
        );

    }//end maskData()


}//end class

$si = new SensitiveInfo();
$encrypted = $si->hide("Hello World");
var_dump($encrypted);

var_dump($si->unhide($encrypted));

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Call to undefined function openssl_encrypt() in /in/Xi5WF:28 Stack trace: #0 /in/Xi5WF(48): SensitiveInfo->hide('Hello World') #1 {main} thrown in /in/Xi5WF on line 28
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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