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admin/phpMyAdmin/vendor/symfony/config/Resource/FileResource.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\Config\Resource;
+
+/**
+ * FileResource represents a resource stored on the filesystem.
+ *
+ * The resource can be a file or a directory.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.3
+ */
+class FileResource implements SelfCheckingResourceInterface
+{
+    /**
+     * @var string|false
+     */
+    private $resource;
+
+    /**
+     * @param string $resource The file path to the resource
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function __construct(string $resource)
+    {
+        $this->resource = realpath($resource) ?: (file_exists($resource) ? $resource : false);
+
+        if (false === $this->resource) {
+            throw new \InvalidArgumentException(sprintf('The file "%s" does not exist.', $resource));
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __toString()
+    {
+        return $this->resource;
+    }
+
+    /**
+     * @return string The canonicalized, absolute path to the resource
+     */
+    public function getResource()
+    {
+        return $this->resource;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isFresh($timestamp)
+    {
+        return false !== ($filemtime = @filemtime($this->resource)) && $filemtime <= $timestamp;
+    }
+}