upgrade

vendor/symfony/validator/Tests/Fixtures/Countable.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\Validator\Tests\Fixtures;
+
+class Countable implements \Countable
+{
+    private $content;
+
+    public function __construct(array $content)
+    {
+        $this->content = $content;
+    }
+
+    public function count()
+    {
+        return count($this->content);
+    }
+}