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<?php |
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|
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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/** |
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* Stores redirect IDs whose destinations recently appeared as 404s. |
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*/ |
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class ABJ_404_Solution_RedirectDeadDestinationStore { |
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|
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public const CACHE_KEY = 'abj404_dead_dest_ids'; |
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|
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/** @return array<int, string> */ |
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public function getIds(): array { |
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if (!function_exists('get_transient')) { |
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return array(); |
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} |
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|
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$raw = get_transient(self::CACHE_KEY); |
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if (!is_array($raw)) { |
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return array(); |
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} |
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|
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$ids = array(); |
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foreach ($raw as $value) { |
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if (is_scalar($value) && (string)$value !== '') { |
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$ids[] = (string)$value; |
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} |
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} |
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|
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return array_values(array_unique($ids)); |
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} |
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|
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/** |
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* @param array<int, string> $ids |
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* @return void |
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*/ |
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public function storeIds(array $ids): void { |
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if (!function_exists('set_transient')) { |
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return; |
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} |
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|
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$normalized = array(); |
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foreach ($ids as $id) { |
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if (is_scalar($id) && (string)$id !== '') { |
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$normalized[] = (string)$id; |
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} |
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} |
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|
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$ttl = defined('HOUR_IN_SECONDS') ? 25 * (int) HOUR_IN_SECONDS : 90000; |
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// allow-cache-empty: an empty array is the explicit "no dead destinations" cache result. |
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set_transient(self::CACHE_KEY, array_values(array_unique($normalized)), $ttl); |
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} |
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} |
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|
