openssl_cipher_key_length
Gets the cipher key length
Description
intfalse openssl_cipher_key_length(string $cipher_algo)
Parameters
-
cipher_algo
-
The cipher method, see openssl_get_cipher_methods for a list of potential values.
Return Values
Returns the cipher length on success, or false on failure.
Errors/Exceptions
Emits an E_WARNING level error when the cipher algorithm
is unknown.
Examples
Example #1 openssl_cipher_key_length example
<?php
$method = 'AES-128-CBC';
var_dump(openssl_cipher_key_length($method));
?>
The above example will output
something similar to: