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system/Session/Handlers/ArrayHandler.php

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+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Session\Handlers;
+
+use ReturnTypeWillChange;
+
+/**
+ * Session handler using static array for storage.
+ * Intended only for use during testing.
+ */
+class ArrayHandler extends BaseHandler
+{
+    protected static $cache = [];
+
+    /**
+     * Re-initialize existing session, or creates a new one.
+     *
+     * @param string $path The path where to store/retrieve the session
+     * @param string $name The session name
+     */
+    public function open($path, $name): bool
+    {
+        return true;
+    }
+
+    /**
+     * Reads the session data from the session storage, and returns the results.
+     *
+     * @param string $id The session ID
+     *
+     * @return false|string Returns an encoded string of the read data.
+     *                      If nothing was read, it must return false.
+     */
+    #[ReturnTypeWillChange]
+    public function read($id)
+    {
+        return '';
+    }
+
+    /**
+     * Writes the session data to the session storage.
+     *
+     * @param string $id   The session ID
+     * @param string $data The encoded session data
+     */
+    public function write($id, $data): bool
+    {
+        return true;
+    }
+
+    /**
+     * Closes the current session.
+     */
+    public function close(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Destroys a session
+     *
+     * @param string $id The session ID being destroyed
+     */
+    public function destroy($id): bool
+    {
+        return true;
+    }
+
+    /**
+     * Cleans up expired sessions.
+     *
+     * @param int $max_lifetime Sessions that have not updated
+     *                          for the last max_lifetime seconds will be removed.
+     *
+     * @return false|int Returns the number of deleted sessions on success, or false on failure.
+     */
+    #[ReturnTypeWillChange]
+    public function gc($max_lifetime)
+    {
+        return 1;
+    }
+}