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<?php |
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/** |
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* neuralyzer : Data Anonymization Library and CLI Tool |
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* |
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* PHP Version 7.1 |
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* |
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* @author Emmanuel Dyan |
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* @copyright 2018 Emmanuel Dyan |
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* |
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* @package edyan/neuralyzer |
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* |
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* @license GNU General Public License v2.0 |
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* |
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* @link https://github.com/edyan/neuralyzer |
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*/ |
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namespace Edyan\Neuralyzer\Faker\Provider; |
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use Faker\Generator; |
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use Faker\Provider\Base; |
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/** |
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* Class UniqueWord. |
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*/ |
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class UniqueWord extends Base |
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{ |
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/** |
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* Language to generate words from. |
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* |
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* @var string |
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*/ |
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private $language; |
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private static $dictionary = []; |
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/** |
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* UniqueWord constructor. |
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* |
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* @param Generator $generator |
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* @param string $language |
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*/ |
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public function __construct(Generator $generator, string $language = 'en_US') |
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{ |
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parent::__construct($generator); |
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$this->language = $language; |
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} |
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/** |
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* If not already done, load the file in memory as an array, then shuffle it |
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* |
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* @return string |
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*/ |
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public function uniqueWord(): string |
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{ |
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if (empty(self::$dictionary)) { |
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$this->loadFullDictionary(); |
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} |
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return $this->extractARowFromDictionary(); |
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} |
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/** |
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* Load the current language dictionary with a lot of words |
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* to always be able to get a unique value. |
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*/ |
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private function loadFullDictionary(): void |
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{ |
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$file = __DIR__ . '/../Dictionary/' . $this->language; |
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if (!file_exists($file)) { |
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$file = __DIR__ . '/../Dictionary/en_US'; |
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} |
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self::$dictionary = array_filter(explode(PHP_EOL, file_get_contents($file))); |
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} |
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/** |
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* @return string |
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* @throws \RuntimeException |
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*/ |
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private function extractARowFromDictionary(): string |
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{ |
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if (empty(self::$dictionary)) { |
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throw new \RuntimeException("Couldn't generate more unique words ... consider using another method"); |
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} |
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$key = array_rand(self::$dictionary); |
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$row = self::$dictionary[$key]; |
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unset(self::$dictionary[$key]); |
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return $row; |
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} |
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} |
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edyan /
neuralyzer
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: