CodeIgniter 3.1.11 -> 3.4.5 (pocketarc fork) en PHP 8.3-fixes

- system/ vervangen door CodeIgniter 3.4.5 (pocketarc/codeigniter, PHP 8.2-8.5 compatibel)
- config.php, mimes.php, user_agents.php en error-views bijgewerkt naar 3.4.5
- composer.json: php-constraint "^7.4 || ^8.0" zodat composer install op 8.3 werkt
- PHP 8-fatals opgelost: count()/array-functies op FALSE/null, rekenen met lege
  strings, delen door nul, property zetten op FALSE, curly-brace string offsets,
  ongedefinieerde constanten, foute curl_setopt in Phantom_model::create_img
- dynamic properties gedeclareerd in libraries, optionele parameters voor verplichte opgelost
- vergelijkingen waar '' == 0 in PHP 8 anders uitvalt gecast naar (int)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

system/libraries/Session/drivers/Session_database_driver.php

@@ -6,7 +6,7 @@
  *
  * This content is released under the MIT License (MIT)
  *
- * Copyright (c) 2014 - 2019, British Columbia Institute of Technology
+ * Copyright (c) 2019 - 2022, CodeIgniter Foundation
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -30,6 +30,7 @@
  * @author	EllisLab Dev Team
  * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
  * @copyright	Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
+ * @copyright	Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
  * @license	https://opensource.org/licenses/MIT	MIT License
  * @link	https://codeigniter.com
  * @since	Version 3.0.0
@@ -44,9 +45,9 @@ defined('BASEPATH') OR exit('No direct script access allowed');
  * @subpackage	Libraries
  * @category	Sessions
  * @author	Andrey Andreev
- * @link	https://codeigniter.com/user_guide/libraries/sessions.html
+ * @link	https://codeigniter.com/userguide3/libraries/sessions.html
  */
-class CI_Session_database_driver extends CI_Session_driver implements SessionHandlerInterface {
+class CI_Session_database_driver extends CI_Session_driver implements CI_Session_driver_interface {
 
 	/**
 	 * DB object
@@ -343,16 +344,41 @@ class CI_Session_database_driver extends CI_Session_driver implements SessionHan
 
 	// --------------------------------------------------------------------
 
+	/**
+	 * Update Timestamp
+	 *
+	 * Update session timestamp without modifying data
+	 *
+	 * @param	string	$id	Session ID
+	 * @param	string	$data	Unknown & unused
+	 * @return	bool
+	 */
+	public function updateTimestamp($id, $unknown)
+	{
+		// Prevent previous QB calls from messing with our queries
+		$this->_db->reset_query();
+
+		$this->_db->where('id', $id);
+		if ($this->_config['match_ip'])
+		{
+			$this->_db->where('ip_address', $_SERVER['REMOTE_ADDR']);
+		}
+
+		return (bool) $this->_db->update($this->_config['save_path'], array('timestamp' => time()));
+	}
+
+	// --------------------------------------------------------------------
+
 	/**
 	 * Validate ID
 	 *
 	 * Checks whether a session ID record exists server-side,
 	 * to enforce session.use_strict_mode.
 	 *
-	 * @param	string	$id
+	 * @param	string	$id	Session ID
 	 * @return	bool
 	 */
-	public function validateSessionId($id)
+	public function validateId($id)
 	{
 		// Prevent previous QB calls from messing with our queries
 		$this->_db->reset_query();