This is a simple ACF field to use in place of the default Password field to encrypt the password stored in the database using PHP 5.5's password_hash() function.

• PHP >= 7
• ACF >= 5

$ composer require log1x/acf-encrypted-password

You can verify the password using PHP 5.5's password_verify() function like so:

$input = $_GET['password'];
$hash  = get_field('password');

if (password_verify($input, $hash)) {
  echo 'Correct';
} else {
  echo 'Incorrect';
}