<?php

$config = new \Lamoda\GS1Parser\Parser\ParserConfig();
$parser = new \Lamoda\GS1Parser\Parser\Parser($config);

$value = ']d201034531200000111719112510ABCD1234';

$barcode = $parser->parse($value);

// $barcode is an object of Barcode class

<?php

$parserConfig = new \Lamoda\GS1Parser\Parser\ParserConfig();
$parser = new \Lamoda\GS1Parser\Parser\Parser($parserConfig);

$validatorConfig = new \Lamoda\GS1Parser\Validator\ValidatorConfig();
$validator = new \Lamoda\GS1Parser\Validator\Validator($parser, $validatorConfig);

$value = ']d201034531200000111719112510ABCD1234';

$resolution = $validator->validate($value);

if ($resolution->isValid()) {
    // ...
} else {
    var_dump($resolution->getErrors());
}