php拆分域名

<?php
function splitDomain($url) {
    $parts = parse_url($url);
    if (isset($parts['host'])) {
        $hostParts = explode('.', $parts['host']);
        $protocol = isset($parts['scheme']) ? $parts['scheme'] . '://' : '';
        $subdomain = array_shift($hostParts);
        $domain = implode('.', $hostParts);
        $tld = array_pop($hostParts);
        return [
            'protocol' => $protocol,
            'subdomain' => $subdomain,
            'domain' => $domain,
            'tld' => $tld
        ];
    }
    return null;
}

$url = "https://www.example.com/path";
$result = splitDomain($url);

if ($result) {
    echo "Protocol: " . $result['protocol'] . "\n";
    echo "Subdomain: " . $result['subdomain'] . "\n";
    echo "Domain: " . $result['domain'] . "\n";
    echo "TLD: " . $result['tyl'] . "\n";
} else {
    echo "Invalid URL";
}
?>

function isValidUrl($url) {
    return filter_var($url, FILTER_VALIDATE_URL);
}

$url = "https://www.example.com/path";
if (isValidUrl($url)) {
    $result = splitDomain($url);
    // 处理结果
} else {
    echo "Invalid URL";
}

function splitDomain($url) {
    $parts = parse_url($url);
    if (isset($parts['host'])) {
        $host = $parts['host'];
        $host = idn_to_ascii($host);
        $hostParts = explode('.', $host);
        $protocol = isset($parts['scheme']) ? $parts['scheme'] . '://' : '';
        $subdomain = array_shift($hostParts);
        $domain = implode('.', $hostParts);
        $tld = array_pop($hostParts);
        return [
            'protocol' => $protocol,
            'subdomain' => $subdomain,
            'domain' => $domain,
            'tld' => $tld
        ];
    }
    return null;
}