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<?php |
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|
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/** |
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* Class LP_Courses_Cache |
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* |
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* @author tungnx |
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* @since 4.1.5 |
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* @version 1.0.0 |
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*/ |
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defined( 'ABSPATH' ) || exit(); |
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|
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class LP_Courses_Cache extends LP_Cache { |
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/** |
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* @var LP_Courses_Cache |
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*/ |
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protected static $instance; |
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/** |
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* @var string |
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*/ |
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protected $key_group_child = 'courses'; |
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/** |
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* @var string Save list keys cached to clear |
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*/ |
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public static $keys = 'keys'; |
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|
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/** |
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* Get instance |
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* |
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* @return self |
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*/ |
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public static function instance(): self { |
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if ( is_null( self::$instance ) ) { |
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self::$instance = new self(); |
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} |
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|
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return self::$instance; |
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} |
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|
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protected function __construct() { |
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parent::__construct(); |
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} |
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|
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public function save_cache_keys( string $key_cache ) { |
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$keys_cache = $this->get_cache( self::$keys ); |
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if ( false === $keys_cache ) { |
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$keys_cache = array(); |
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} |
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|
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$keys_cache[] = $key_cache; |
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$this->set_cache( self::$keys, $keys_cache ); |
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} |
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} |
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|
