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TLDExtract

This is a forked from layershifter/tld-extract to support PHP 5.4.0.

To support PHP 5.4.0 please use version ^0.2.2 or use the composer command below:

composer require ivankristianto/tld-extract "^0.2.2"

TLDExtract accurately separates the gTLD or ccTLD (generic or country code top-level domain) from the registered domain and subdomains of a URL. For example, say you want just the 'google' part of 'http://www.google.com'.

Everybody gets this wrong. Splitting on the '.' and taking the last 2 elements goes a long way only if you're thinking of simple e.g. .com domains. Think parsing http://forums.bbc.co.uk for example: the naive splitting method above will give you 'co' as the domain and 'uk' as the TLD, instead of 'bbc' and 'co.uk' respectively.

Extract on the other hand knows what all gTLDs and ccTLDs look like by looking up the currently living ones according to the Public Suffix List. So, given a URL, it knows its subdomain from its domain, and its domain from its country code.

$result = Extract::get('http://forums.news.cnn.com/');
var_dump($result);

object(LayerShifter\TLDExtract\Result)#34 (3) {
  ["subdomain":"LayerShifter\TLDExtract\Result":private]=>
  string(11) "forums.news"
  ["domain":"LayerShifter\TLDExtract\Result":private]=>
  string(3) "cnn"
  ["tld":"LayerShifter\TLDExtract\Result":private]=>
  string(3) "com"
}

Result implements ArrayAccess interface, so you simple can access to its result.

var_dump($result['subdomain']);
string(11) "forums.news"

var_dump($result['domain']);
string(3) "cnn"

var_dump($result['tld']);
string(3) "com"

Also you can simply convert result to JSON.

var_dump($result->toJson());
string(54) "{"subdomain":"forums.news","domain":"cnn","tld":"com"}"

This package based on code from w-shadow which is port of Python module.

Compatible PHP versions

• PHP 5.4
• PHP 5.5
• PHP 5.6
• PHP 7
• HHVM

Installation

Latest release via Composer:

$ composer require layershifter/tld-extract

Note About Advanced Usage & Caching

• Advanced usage
• Caching

Advanced usage

For overriding object that will be returned in result you can create own class that implements \LayerShifter\TLDExtract\Interfaces\ResultInterface.

For example:

class OwnResult implements \LayerShifter\TLDExtract\Interfaces\ResultInterface {
}

Extract::setResultClass('OwnResult');

Caching

By default TLDExtract downloads TLD list from publicsuffix.org, caches it and never update.

You can override this behavior via setting $fetch to true:

Extract::setFetch(true);

Also, you can manually update TLD cache by calling method (recommended):

Extract::updateCache();

This method returns boolean that indicates processes result.

By default cache file will be stored in /path/to/TLDExtract/cache/.tld_set, you can set file for cache by calling:

Extract::setCacheFile('/path/to/your/dir/cache.file');

License

This project is open-sourced software licensed under the MIT License.

See the LICENSE file for more information.