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/core/compat/password.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
@@ -44,8 +45,8 @@ defined('BASEPATH') OR exit('No direct script access allowed');
  * @subpackage	CodeIgniter
  * @category	Compatibility
  * @author		Andrey Andreev
- * @link		https://codeigniter.com/user_guide/
- * @link		http://php.net/password
+ * @link		https://codeigniter.com/userguide3/
+ * @link		https://secure.php.net/password
  */
 
 // ------------------------------------------------------------------------
@@ -67,7 +68,7 @@ if ( ! function_exists('password_get_info'))
 	/**
 	 * password_get_info()
 	 *
-	 * @link	http://php.net/password_get_info
+	 * @link	https://secure.php.net/password_get_info
 	 * @param	string	$hash
 	 * @return	array
 	 */
@@ -86,7 +87,7 @@ if ( ! function_exists('password_hash'))
 	/**
 	 * password_hash()
 	 *
-	 * @link	http://php.net/password_hash
+	 * @link	https://secure.php.net/password_hash
 	 * @param	string	$password
 	 * @param	int	$algo
 	 * @param	array	$options
@@ -141,7 +142,7 @@ if ( ! function_exists('password_hash'))
 				}
 
 				// Try not to waste entropy ...
-				is_php('5.4') && stream_set_chunk_size($fp, 16);
+				stream_set_chunk_size($fp, 16);
 
 				$options['salt'] = '';
 				for ($read = 0; $read < 16; $read = ($func_overload) ? mb_strlen($options['salt'], '8bit') : strlen($options['salt']))
@@ -194,7 +195,7 @@ if ( ! function_exists('password_needs_rehash'))
 	/**
 	 * password_needs_rehash()
 	 *
-	 * @link	http://php.net/password_needs_rehash
+	 * @link	https://secure.php.net/password_needs_rehash
 	 * @param	string	$hash
 	 * @param	int	$algo
 	 * @param	array	$options
@@ -228,7 +229,7 @@ if ( ! function_exists('password_verify'))
 	/**
 	 * password_verify()
 	 *
-	 * @link	http://php.net/password_verify
+	 * @link	https://secure.php.net/password_verify
 	 * @param	string	$password
 	 * @param	string	$hash
 	 * @return	bool