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<?php /** * Iterator for arrays requiring filtered values * * @package Requests\Utilities */ namespace WpOrg\Requests\Utility; use ArrayIterator; use ReturnTypeWillChange; use WpOrg\Requests\Exception\InvalidArgument; use WpOrg\Requests\Utility\InputValidator; /** * Iterator for arrays requiring filtered values * * @package Requests\Utilities */ final class FilteredIterator extends ArrayIterator { /** * Callback to run as a filter * * @var callable */ private $callback; /** * Create a new iterator * * @param array $data * @param callable $callback Callback to be called on each value * * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed $data argument is not iterable. */ public function __construct($data, $callback) { if (InputValidator::is_iterable($data) === false) { throw InvalidArgument::create(1, '$data', 'iterable', gettype($data)); } parent::__construct($data); if (is_callable($callback)) { $this->callback = $callback; } } /** * @inheritdoc * * @phpcs:disable PHPCompatibility.FunctionNameRestrictions.NewMagicMethods.__unserializeFound */ #[ReturnTypeWillChange] public function __unserialize($data) {} // phpcs:enable public function __wakeup() { unset($this->callback); } /** * Get the current item's value after filtering * * @return string */ #[ReturnTypeWillChange] public function current() { $value = parent::current(); if (is_callable($this->callback)) { $value = call_user_func($this->callback, $value); } return $value; } /** * @inheritdoc */ #[ReturnTypeWillChange] public function unserialize($data) {} }