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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Cache\Traits; use Symfony\Component\Cache\CacheItem; use Symfony\Component\Cache\Exception\InvalidArgumentException; use Symfony\Component\VarExporter\VarExporter; /** * @author Titouan Galopin <galopintitouan@gmail.com> * @author Nicolas Grekas <p@tchwork.com> * * @internal */ trait PhpArrayTrait { use ProxyTrait; private $file; private $keys; private $values; /** * Store an array of cached values. * * @param array $values The cached values */ public function warmUp(array $values) { if (file_exists($this->file)) { if (!is_file($this->file)) { throw new InvalidArgumentException(sprintf('Cache path exists and is not a file: %s.', $this->file)); } if (!is_writable($this->file)) { throw new InvalidArgumentException(sprintf('Cache file is not writable: %s.', $this->file)); } } else { $directory = \dirname($this->file); if (!is_dir($directory) && !@mkdir($directory, 0777, true)) { throw new InvalidArgumentException(sprintf('Cache directory does not exist and cannot be created: %s.', $directory)); } if (!is_writable($directory)) { throw new InvalidArgumentException(sprintf('Cache directory is not writable: %s.', $directory)); } } $dumpedValues = ''; $dumpedMap = []; $dump = <<<'EOF' <?php // This file has been auto-generated by the Symfony Cache Component. return [[ EOF; foreach ($values as $key => $value) { CacheItem::validateKey(\is_int($key) ? (string) $key : $key); $isStaticValue = true; if (null === $value) { $value = "'N;'"; } elseif (\is_object($value) || \is_array($value)) { try { $value = VarExporter::export($value, $isStaticValue); } catch (\Exception $e) { throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, \is_object($value) ? \get_class($value) : 'array'), 0, $e); } } elseif (\is_string($value)) { // Wrap "N;" in a closure to not confuse it with an encoded `null` if ('N;' === $value) { $isStaticValue = false; } $value = var_export($value, true); } elseif (!is_scalar($value)) { throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, \gettype($value))); } else { $value = var_export($value, true); } if (!$isStaticValue) { $value = str_replace("\n", "\n ", $value); $value = "static function () {\n return {$value};\n}"; } $hash = hash('md5', $value); if (null === $id = $dumpedMap[$hash] ?? null) { $id = $dumpedMap[$hash] = \count($dumpedMap); $dumpedValues .= "{$id} => {$value},\n"; } $dump .= var_export($key, true)." => {$id},\n"; } $dump .= "\n], [\n\n{$dumpedValues}\n]];\n"; $tmpFile = uniqid($this->file, true); file_put_contents($tmpFile, $dump); @chmod($tmpFile, 0666 & ~umask()); unset($serialized, $value, $dump); @rename($tmpFile, $this->file); $this->initialize(); } /** * {@inheritdoc} */ public function clear() { $this->keys = $this->values = []; $cleared = @unlink($this->file) || !file_exists($this->file); return $this->pool->clear() && $cleared; } /** * Load the cache file. */ private function initialize() { if (!file_exists($this->file)) { $this->keys = $this->values = []; return; } $values = (include $this->file) ?: [[], []]; if (2 !== \count($values) || !isset($values[0], $values[1])) { $this->keys = $this->values = []; } else { list($this->keys, $this->values) = $values; } } }
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