[Help] Secure Password Hashing Algorithm

Hello,

I have this lines of code:

Code:

$password = $_POST['password'];
$salt = '$2a$07$R.gJb2U2N.FmZ4hPp1y2CN$';
$encrypted_password = crypt($password, $salt);

It successfully stores the encrypted password in my database and I also used that same line of code in LogIn but it wasn't working.

Do you guys know how to compare the password from login to password that was stored in the database?

Thanks in advance.