OpenSSL Funçõesopenssl_cipher_iv_length
(PHP 5 >= PHP 5.3.3)
openssl_cipher_iv_length — Gets the cipher iv length
Descrição
int openssl_cipher_iv_length
( string $method
)
Gets the cipher iv length.
Parâmetros
- method
-
The method.
Valor Retornado
Returns the cipher length on success, or FALSE on failure.
Erros
Emits an E_WARNING level error when the cipher algorithm is unknown.
Exemplos
Exemplo #1 openssl_cipher_iv_length() example
<?php
$method = 'AES-128-CBC';
$ivlen = openssl_cipher_iv_length($method);
echo $ivlen;
?>
O exemplo acima irá imprimir algo similar a:
16
User Contributed Notes
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