[PHP-NOTES] note 130808 added to function.sodium-memzero

<?php

$key = random_bytes(SODIUM_CRYPTO_SECRETBOX_KEYBYTES);

$message = "Customer financial data";
$nonce = random_bytes(SODIUM_CRYPTO_SECRETBOX_NONCEBYTES);

$ciphertext = sodium_crypto_secretbox($message, $nonce, $key);

// Key no longer needed
sodium_memzero($key);

var_dump($key); // Usually becomes an empty string
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Server IP: 206.189.2.9 (proxied: BunnyCDN)
Probable Submitter: 2405:201:2014:30d9:a0da:23d9:8940:b166
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Manual Page -- https://php.net/manual/en/function.sodium-memzero.php
Edit        -- https://main.php.net/note/edit/130808
Del: integrated  -- https://main.php.net/note/delete/130808/integrated
Del: useless     -- https://main.php.net/note/delete/130808/useless
Del: bad code    -- https://main.php.net/note/delete/130808/bad+code
Del: spam        -- https://main.php.net/note/delete/130808/spam
Del: non-english -- https://main.php.net/note/delete/130808/non-english
Del: in docs     -- https://main.php.net/note/delete/130808/in+docs
Del: other reasons-- https://main.php.net/note/delete/130808
Reject      -- https://main.php.net/note/reject/130808
Search      -- https://main.php.net/manage/user-notes.php