1--TEST-- 2openssl_cipher_iv_length() error test 3--EXTENSIONS-- 4openssl 5--FILE-- 6<?php 7 8var_dump(openssl_cipher_iv_length('unknown')); 9 10try { 11 var_dump(openssl_cipher_iv_length('')); 12} catch (ValueError $e) { 13 echo $e->getMessage() . "\n"; 14} 15 16?> 17--EXPECTF-- 18 19Warning: openssl_cipher_iv_length(): Unknown cipher algorithm in %s on line %d 20bool(false) 21openssl_cipher_iv_length(): Argument #1 ($cipher_algo) must not be empty 22