openssl_cipher_iv_length()

openssl_cipher_iv_length()

function openssl_cipher_iv_length(string $cipher_algo): mixed

Returns the IV length for a supported cipher.

Parameters:

• $cipher_algo (string)

Returns: mixed

Availability

• Compiled (AOT): supported by the Elephc code generator.
• eval() (magician interpreter): supported — declarative interpreter builtin (crates/elephc-magician/src/interpreter/builtins/string/openssl_cipher_iv_length.rs).

No examples yet — check examples/ and showcases/ for usage patterns.

Internals

For how openssl_cipher_iv_length is implemented in the compiler, see the internals page.