46 lines
980 B
PHP
46 lines
980 B
PHP
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<?php
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namespace Shaarli\Render;
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/**
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* Cache utilities
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*/
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class PageCacheManager
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{
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/** @var string Cache directory */
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protected $pageCacheDir;
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public function __construct(string $pageCacheDir)
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{
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$this->pageCacheDir = $pageCacheDir;
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}
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/**
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* Purges all cached pages
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*
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* @return string|null an error string if the directory is missing
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*/
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public function purgeCachedPages(): ?string
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{
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if (!is_dir($this->pageCacheDir)) {
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$error = sprintf(t('Cannot purge %s: no directory'), $this->pageCacheDir);
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error_log($error);
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return $error;
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}
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array_map('unlink', glob($this->pageCacheDir . '/*.cache'));
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return null;
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}
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/**
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* Invalidates caches when the database is changed or the user logs out.
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*/
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public function invalidateCaches(): void
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{
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// Purge page cache shared by sessions.
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$this->purgeCachedPages();
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}
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}
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