Passed
Push — master ( 707ddf...aa8b2f )
by Sebastian
04:56
created

__construct()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 7
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
eloc 3
c 1
b 0
f 0
dl 0
loc 7
rs 10
cc 2
nc 2
nop 0
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<?php
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/**
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 * File containing the class {@see ConvertHelper_URLFinder_DomainExtensions}
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 *
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 * @package AppUtils
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 * @subpackage URLFinder
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 * @see ConvertHelper_URLFinder_DomainExtensions
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 */
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declare(strict_types=1);
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namespace AppUtils;
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/**
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 * Access a list of all top level domain extensions.
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 *
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 * @package AppUtils
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 * @subpackage URLFinder
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 * @author Sebastian Mordziol <[email protected]>
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 *
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 * @link https://data.iana.org/TLD/tlds-alpha-by-domain.txt
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 */
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class ConvertHelper_URLFinder_DomainExtensions
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{
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    /**
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     * @var string
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     */
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    private static $cacheFile = '';
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    /**
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     * @var string[]
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     */
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    private static $names = array();
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    public function __construct()
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    {
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        if(empty(self::$cacheFile)) {
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            self::$cacheFile = __DIR__.'/tlds-alpha-by-domain.txt';
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        }
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        $this->load();
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    }
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    /**
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     * @return string[]
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     */
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    public function getNames() : array
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    {
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        return self::$names;
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    }
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    public function nameExists(string $name) : bool
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    {
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        $name = strtolower($name);
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        return isset(self::$names[$name]);
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    }
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    private function load() : void
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    {
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        if(!empty(self::$names)) {
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            return;
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        }
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        $content = strtolower(FileHelper::readContents(self::$cacheFile));
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        $names = ConvertHelper::explodeTrim("\n", $content);
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        // Store the names as keys in the array to allow
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        // faster lookups (to avoid using in_array).
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        foreach($names as $name) {
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            self::$names[$name] = '';
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        }
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    }
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}
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