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

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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\Adapter\AdapterInterface;
+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;
+
+    private static $valuesCache = [];
+
+    /**
+     * 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, $this->file);
+        unset(self::$valuesCache[$this->file]);
+
+        $this->initialize();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param string $prefix
+     *
+     * @return bool
+     */
+    public function clear(/*string $prefix = ''*/)
+    {
+        $prefix = 0 < \func_num_args() ? (string) func_get_arg(0) : '';
+        $this->keys = $this->values = [];
+
+        $cleared = @unlink($this->file) || !file_exists($this->file);
+        unset(self::$valuesCache[$this->file]);
+
+        if ($this->pool instanceof AdapterInterface) {
+            return $this->pool->clear($prefix) && $cleared;
+        }
+
+        return $this->pool->clear() && $cleared;
+    }
+
+    /**
+     * Load the cache file.
+     */
+    private function initialize()
+    {
+        if (isset(self::$valuesCache[$this->file])) {
+            $values = self::$valuesCache[$this->file];
+        } elseif (!file_exists($this->file)) {
+            $this->keys = $this->values = [];
+
+            return;
+        } else {
+            $values = self::$valuesCache[$this->file] = (include $this->file) ?: [[], []];
+        }
+
+        if (2 !== \count($values) || !isset($values[0], $values[1])) {
+            $this->keys = $this->values = [];
+        } else {
+            [$this->keys, $this->values] = $values;
+        }
+    }
+}