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polylang
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cache.php
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api.php
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base.php
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cache.php
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class-polylang.php
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cookie.php
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crud-posts.php
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crud-terms.php
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filter-rest-routes.php
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filters-links.php
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filters-sanitization.php
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filters-widgets-options.php
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filters.php
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functions.php
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language-deprecated.php
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language-factory.php
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language.php
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license.php
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links-abstract-domain.php
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links-default.php
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links-directory.php
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links-domain.php
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links-model.php
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links-permalinks.php
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links-subdomain.php
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links.php
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mo.php
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model.php
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nav-menu.php
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olt-manager.php
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query.php
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rest-request.php
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static-pages.php
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switcher.php
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translatable-object.php
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translatable-objects.php
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translate-option.php
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translated-object.php
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translated-post.php
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translated-term.php
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walker-dropdown.php
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walker-list.php
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walker.php
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widget-calendar.php
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widget-languages.php
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error_log
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cache.php
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<?php /** * @package Polylang */ /** * An extremely simple non persistent cache system. * * @since 1.7 * * @template TCacheData */ class PLL_Cache { /** * Current site id. * * @var int */ protected $blog_id; /** * The cache container. * * @var array * * @phpstan-var array<int, array<non-empty-string, TCacheData>> */ protected $cache = array(); /** * Constructor. * * @since 1.7 */ public function __construct() { $this->blog_id = get_current_blog_id(); add_action( 'switch_blog', array( $this, 'switch_blog' ) ); } /** * Called when switching blog. * * @since 1.7 * * @param int $new_blog_id New blog ID. * @return void */ public function switch_blog( $new_blog_id ) { $this->blog_id = $new_blog_id; } /** * Adds a value in cache. * * @since 1.7 * @since 3.6 Returns the cached value. * * @param string $key Cache key. * @param mixed $data The value to add to the cache. * @return mixed * * @phpstan-param non-empty-string $key * @phpstan-param TCacheData $data * @phpstan-return TCacheData */ public function set( $key, $data ) { $this->cache[ $this->blog_id ][ $key ] = $data; return $data; } /** * Returns value from cache. * * @since 1.7 * * @param string $key Cache key. * @return mixed * * @phpstan-param non-empty-string $key * @phpstan-return TCacheData|false */ public function get( $key ) { return isset( $this->cache[ $this->blog_id ][ $key ] ) ? $this->cache[ $this->blog_id ][ $key ] : false; } /** * Cleans the cache (for this blog only). * * @since 1.7 * * @param string $key Optional. Cache key. An empty string to clean the whole cache for the current blog. * Default is an empty string. * @return void */ public function clean( $key = '' ) { if ( '' === $key ) { unset( $this->cache[ $this->blog_id ] ); } else { unset( $this->cache[ $this->blog_id ][ $key ] ); } } /** * Generates and returns a "unique" cache key, depending on `$data` and prefixed by `$prefix`. * * @since 3.6 * * @param string $prefix String to prefix the cache key. * @param string|array|object $data Data. * @return string * * @phpstan-param non-empty-string $prefix * @phpstan-return non-empty-string */ public function get_unique_key( string $prefix, $data ): string { /** @var scalar */ $serialized = maybe_serialize( $data ); return $prefix . md5( (string) $serialized ); } }