openssl_cipher_key_length
(PHP 8 >= 8.2.0)
openssl_cipher_key_length — Gets the cipher key length
Parámetros
-
cipher_algo -
The cipher method, see openssl_get_cipher_methods() for a list of potential values.
Valores devueltos
Returns the cipher length on success, o false en caso de error.
Errores/Excepciones
Emits an E_WARNING level error when the cipher algorithm
is unknown.
Ejemplos
Ejemplo #1 openssl_cipher_key_length() example
<?php
$method = 'AES-128-CBC';
var_dump(openssl_cipher_key_length($method));
?>El resultado del ejemplo sería algo similar a:
int(16)
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