encryption - openssl_cipher_iv_length error on php 7.4

Question

how to fix openssl_cipher_iv_length error on php 7.4 its working normally on php 7.2?

    $key = pack('H*','5e4888f3b85db60b53303483581c2b42112788e5e1b2d18c45cf70b867ca0721');
    $method = 'aes-256-ecb'; 
    $iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length($method));
    $encrypted = openssl_encrypt($data, $method, $key, OPENSSL_RAW_DATA, $iv);
    $encrypted = strtoupper(implode(null, unpack('H*', $encrypted)));
    return $encrypted;

in PHP 7.4 i get this error Fatal error: Uncaught Error: Length must be greater than 0
In Php 7.2 Everything is work

Answer 1

等待大神答复