Spanish NIE incorrectly marked as "Not a VAT number"

[andretse77]

I'm using the validator to validate different kinds of vat numbers, but whenever I use the spanish NIE (which is the Spanish Foreigner Identity Number) I keep getting an error saying it's not a vat number even though I checked on this website https://www.validardni.es/ and it's valid. I tried with several others NIEs and some of them are working and some of them are not (for example Y6671688B doesn't work).

It seems that the current implementation may not correctly support all valid NIE formats. Could you please confirm if full NIE support is intended, and whether this might be a bug? I'm happy to provide more examples or assist with debugging if needed.

[andretse77]

Update: I reviewed the EScheck method and noticed it does not include proper support for Spanish NIEs, such as those starting with Y or Z.

[andretse77]

Also FYI, on the EScheck method, the last condition has an error

elseif (0 !== preg_match($esExpr[3], $number)) {
        $charString = 'TRWAGMYFPDXBNJZSQVHLCKE';
        return $tempNumber[8] === $charString[(int) substr($tempNumber, 1, 7) % 23];
}

$tempNumber is never declared so it will return an error