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(PHP 8 >= 8.2.0)
openssl_cipher_key_length — Gets the cipher key length
cipher_algoThe cipher method, see openssl_get_cipher_methods() for a list of potential values.
Returns the cipher length on success, або false в разі помилки.
Emits an E_WARNING level error when the cipher algorithm
is unknown.
Приклад #1 openssl_cipher_key_length() example
<?php
$method = 'AES-128-CBC';
var_dump(openssl_cipher_key_length($method));
?>Поданий вище приклад виведе щось схоже на:
int(16)
