sodium_crypto_generichash_update
(PHP 7 >= 7.2.0, PHP 8)
sodium_crypto_generichash_update — Add message to a hash
Description
sodium_crypto_generichash_update(string &$state, string $message): bool
Appends a message to the internal hash state.
Parameters
-
state
-
The return value of sodium_crypto_generichash_init().
-
message
-
Data to append to the hashing state.
Return Values
Returns true
on success or false
on failure.
Examples
Example #1 sodium_crypto_generichash_update() example
<?php $messages = [random_bytes(32), random_bytes(32), random_bytes(16)]; $state = sodium_crypto_generichash_init(); foreach ($messages as $message) { sodium_crypto_generichash_update($state, $message); } $final = sodium_crypto_generichash_final($state); var_dump(sodium_bin2hex($final)); $allAtOnce = sodium_crypto_generichash(implode('', $messages)); var_dump(sodium_bin2hex($allAtOnce)); ?>
The above example will output something similar to:
string(64) "e16e28bbbbcc39d9f5b1cbc33c41f1d217808640103e57a41f24870f79831e04" string(64) "e16e28bbbbcc39d9f5b1cbc33c41f1d217808640103e57a41f24870f79831e04"
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https://www.php.net/manual/en/function.sodium-crypto-generichash-update.php