Проверка в КЗП на мейл / масив от мейли

kzp

<?php
function kzp($emails) {
	if(!is_array($emails)) { $emails = [ (string)$emails ]; }
	if(false === ($hashes = @file('http://www.kzp.bg/download.php?mode=fileDownload&p_attached_file_id=4956'))) {
		throw new Exception('Could not load KZP hashes');
	}
	array_walk($hashes, function (&$hash) { $hash = substr(strtoupper(trim($hash)),0,32); });
	return array_filter(array_unique($emails), function ($mail) use ($hashes) {
		$mail = mb_strtolower(trim($mail),'utf-8');
		return filter_var($mail, FILTER_VALIDATE_EMAIL) && !in_array(strtoupper(md5(explode('@', $mail)[1])), $hashes) && !in_array(strtoupper(md5($mail)), $hashes);
	});
}