openssl_cipher_key_length
(PHP 8 >= 8.2.0)
openssl_cipher_key_length — Gets the cipher key length
Parâmetros
-
cipher_algo -
The cipher method, see openssl_get_cipher_methods() for a list of potential values.
Valor Retornado
Returns the cipher length on success, ou false em caso de falha.
Erros/Exceções
Emits an E_WARNING level error when the cipher algorithm
is unknown.
Exemplos
Exemplo #1 openssl_cipher_key_length() example
<?php
$method = 'AES-128-CBC';
var_dump(openssl_cipher_key_length($method));
?>O exemplo acima produzirá algo semelhante a:
int(16)
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