Update website

admin/phpMyAdmin/vendor/symfony/cache/Traits/ArrayTrait.php

@@ -0,0 +1,184 @@
+<?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 Psr\Log\LoggerAwareTrait;
+use Symfony\Component\Cache\CacheItem;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait ArrayTrait
+{
+    use LoggerAwareTrait;
+
+    private $storeSerialized;
+    private $values = [];
+    private $expiries = [];
+
+    /**
+     * Returns all cached values, with cache miss as null.
+     *
+     * @return array
+     */
+    public function getValues()
+    {
+        if (!$this->storeSerialized) {
+            return $this->values;
+        }
+
+        $values = $this->values;
+        foreach ($values as $k => $v) {
+            if (null === $v || 'N;' === $v) {
+                continue;
+            }
+            if (!\is_string($v) || !isset($v[2]) || ':' !== $v[1]) {
+                $values[$k] = serialize($v);
+            }
+        }
+
+        return $values;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function hasItem($key)
+    {
+        if (\is_string($key) && isset($this->expiries[$key]) && $this->expiries[$key] > microtime(true)) {
+            return true;
+        }
+        CacheItem::validateKey($key);
+
+        return isset($this->expiries[$key]) && !$this->deleteItem($key);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param string $prefix
+     *
+     * @return bool
+     */
+    public function clear(/*string $prefix = ''*/)
+    {
+        $prefix = 0 < \func_num_args() ? (string) func_get_arg(0) : '';
+
+        if ('' !== $prefix) {
+            foreach ($this->values as $key => $value) {
+                if (0 === strpos($key, $prefix)) {
+                    unset($this->values[$key], $this->expiries[$key]);
+                }
+            }
+        } else {
+            $this->values = $this->expiries = [];
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function deleteItem($key)
+    {
+        if (!\is_string($key) || !isset($this->expiries[$key])) {
+            CacheItem::validateKey($key);
+        }
+        unset($this->values[$key], $this->expiries[$key]);
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->clear();
+    }
+
+    private function generateItems(array $keys, float $now, callable $f): iterable
+    {
+        foreach ($keys as $i => $key) {
+            if (!$isHit = isset($this->expiries[$key]) && ($this->expiries[$key] > $now || !$this->deleteItem($key))) {
+                $this->values[$key] = $value = null;
+            } else {
+                $value = $this->storeSerialized ? $this->unfreeze($key, $isHit) : $this->values[$key];
+            }
+            unset($keys[$i]);
+
+            yield $key => $f($key, $value, $isHit);
+        }
+
+        foreach ($keys as $key) {
+            yield $key => $f($key, null, false);
+        }
+    }
+
+    private function freeze($value, $key)
+    {
+        if (null === $value) {
+            return 'N;';
+        }
+        if (\is_string($value)) {
+            // Serialize strings if they could be confused with serialized objects or arrays
+            if ('N;' === $value || (isset($value[2]) && ':' === $value[1])) {
+                return serialize($value);
+            }
+        } elseif (!is_scalar($value)) {
+            try {
+                $serialized = serialize($value);
+            } catch (\Exception $e) {
+                unset($this->values[$key]);
+                $type = \is_object($value) ? \get_class($value) : \gettype($value);
+                $message = sprintf('Failed to save key "{key}" of type %s: ', $type).$e->getMessage();
+                CacheItem::log($this->logger, $message, ['key' => $key, 'exception' => $e]);
+
+                return null;
+            }
+            // Keep value serialized if it contains any objects or any internal references
+            if ('C' === $serialized[0] || 'O' === $serialized[0] || preg_match('/;[OCRr]:[1-9]/', $serialized)) {
+                return $serialized;
+            }
+        }
+
+        return $value;
+    }
+
+    private function unfreeze(string $key, bool &$isHit)
+    {
+        if ('N;' === $value = $this->values[$key]) {
+            return null;
+        }
+        if (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
+            try {
+                $value = unserialize($value);
+            } catch (\Exception $e) {
+                CacheItem::log($this->logger, 'Failed to unserialize key "{key}": '.$e->getMessage(), ['key' => $key, 'exception' => $e]);
+                $value = false;
+            }
+            if (false === $value) {
+                $this->values[$key] = $value = null;
+                $isHit = false;
+            }
+        }
+
+        return $value;
+    }
+}