AddressSplitter.php

<?php

class AddressSplitter {

    /**
     * Splits an address line in to array of street, houseNumber, houseNumberExtension and additionToAddress
     * @param $address
     * @return array
     */
    public static function splitAddress($address)
    {
        try {
            $splittedAddress = \VIISON\AddressSplitter\AddressSplitter::splitAddress($address);
        } catch (InvalidArgumentException $e) {
            return [
                'street' => $address,
                'houseNumber' => null,
                'houseNumberExtension' => null,
                'additionToAddress' => null
            ];
        }

        $houseNumber = $splittedAddress['houseNumber'];
        $houseNumberExtension = null;

        $housenumberMatch = preg_match("/(\d+)/", $splittedAddress['houseNumber'], $splittedHouseNumber);
        if ($housenumberMatch && strlen($splittedHouseNumber[0]) < $houseNumber)
        {
            $houseNumber = trim($splittedHouseNumber[0]);
            $houseNumberExtension = trim(substr($splittedAddress['houseNumber'], strlen($splittedHouseNumber[0])));
        }

        return [
            'street' => $splittedAddress['streetName'],
            'houseNumber' => $houseNumber,
            'houseNumberExtension' => $houseNumberExtension,
            'additionToAddress' => $splittedAddress['additionToAddress2']
        ];
    }
}