How to check password is correct in phpFox

To check whether a password is correct or not, we need three values: password, password_hash and password_salt

If length of password_hash = 32 (password generated on V3)

$password_hash =  md5(md5('password') . md5('password_salt'));

If password_hash > 32 (password generated on V4)

$password_hash = password_hash('password', PASSWORD_BCRYPT, array('cost' => 10));

To check whether a password is correct or not:

if (password_verify('password', 'password_hash')){
 //Password correct
} else {
 //Password incorrect
}