How can the PHP code be modified to ensure that the password encoding and decoding functions work correctly under different character encoding schemes, such as ANSI and UTF-8?

When dealing with different character encoding schemes like ANSI and UTF-8, it is important to ensure that the password encoding and decoding functions handle these schemes correctly. One way to achieve this is by using PHP's mb_convert_encoding() function to convert the input string to the desired encoding before encoding the password, and then converting it back to the original encoding after decoding the password. 

<?php
function encode_password($password, $encoding = 'UTF-8') {
    $password = mb_convert_encoding($password, $encoding);
    return password_hash($password, PASSWORD_DEFAULT);
}

function decode_password($hash, $encoding = 'UTF-8') {
    $password = password_get_info($hash)['password'];
    $decoded_password = password_verify($password, $hash) ? $password : false;
    return mb_convert_encoding($decoded_password, $encoding);
}

// Example usage
$password = 'secret_password';
$encoded_password = encode_password($password);
echo $encoded_password . PHP_EOL;

$decoded_password = decode_password($encoded_password);
echo $decoded_password . PHP_EOL;
?>

Keywords

PHP password encoding decoding character encoding UTF-8

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