Simple PHP script to convert Flipper Zero nfc files to binary data

nfc2bin.php

<?php

declare(strict_types=1);

foreach (glob('*.nfc') as $filename) {
	$blocks = array_filter(yaml_parse_file($filename), fn (string $key) => str_starts_with($key, 'Block '), ARRAY_FILTER_USE_KEY);
	ksort($blocks, SORT_NATURAL);
	file_put_contents("$filename.bin", hex2bin(str_replace(' ', '', implode('', $blocks))));
}