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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<style type='text/css' media='all'>@import url('userguide.css');</style>
<link rel='stylesheet' type='text/css' media='all' href='userguide.css' />
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<meta name='author' content='ExpressionEngine Dev Team' />
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<title>版本紀錄 : CodeIgniter 使用手冊</title>
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<!-- START NAVIGATION -->
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<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="./images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle 目錄" alt="Toggle 目錄" /></a></div>
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<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
<tr>
<td><h1>CodeIgniter 使用手冊版本 2.2.0</h1></td>
<td id="breadcrumb_right"><a href="./toc.html">目錄</a></td>
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</table>
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<a href="http://www.codeigniter.org.tw/">CodeIgniter 首頁</a> ›
<a href="index.html">使用手冊首頁</a> ›
版本紀錄
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<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="www.codeigniter.org.tw/user_guide/" />搜尋使用手冊 <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td>
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<div id="content">
<h1>版本紀錄</h1>
<a name="2.2.0"></a>
<h2>版本 2.2.0</h2>
<p>發佈日期: June 5, 2014</p>
<ul>
<li>一般變更
<ul>
<li><b>安全性:</b> The <samp>xor_encode()</samp> method in the Encrypt Class has been removed. The Encrypt Class now requires the Mcrypt extension to be installed.</li>
<li><b>安全性:</b> The <a href="libraries/sessions.html">Session Library</a> now uses HMAC authentication instead of a simple MD5 checksum.</li>
</ul>
</li>
</ul>
<h3>2.2.0 修正項目</h3>
<ul>
<li>Fixed an edge case (#2583) in the <a href="libraries/email.html">Email Library</a> where <a href="http://www.hardened-php.net/suhosin/">Suhosin</a> blocked messages sent via <samp>mail()</samp> due to trailing newspaces in headers.</li>
<li>Fixed a bug (#696) - make <samp>oci_execute()</samp> calls inside <samp>num_rows()</samp> non-committing, since they are only there to reset which row is next in line for oci_fetch calls and thus don't need to be committed.</li>
<li>Fixed a bug (#2689) - <a href="database/forge.html">Database Forge Class</a> methods <samp>create_table()</samp>, <samp>drop_table()</samp> and <samp>rename_table()</samp> produced broken SQL for tge 'sqlsrv' driver.</li>
<li>Fixed a bug (#2427) - PDO <a href="database/index.html">Database driver</a> didn't properly check for query failures.</li>
<li>Fixed a bug in the <a href="libraries/sessions.html">Session Library</a> where authentication was not performed for encrypted cookies.</li>
</ul>
<a name="2.1.4"></a>
<h2>版本 2.1.4</h2>
<p>發佈日期: July 8, 2013</p>
<ul>
<li>一般變更
<ul>
<li>改善安全性函式 <kbd>xss_clean()</kbd>.</li>
</ul>
</li>
</ul>
<h3>2.1.4 修正項目:</h3>
<ul>
<li>修正項目 (#1936) - <a href="libraries/migration.html">Migrations Library</a> method <samp>latest()</samp> had a typo when retrieving language values.</li>
<li>修正項目 (#2021) - <a href="libraries/migration.html">Migrations Library</a> configuration file was mistakenly using Windows style line feeds.</li>
<li>修正項目 (#1969) - <a href="database/active_record.html">Active Record</a> method <samp>set_update_batch()</samp> was using the incorrect variables and would cause an error.</li>
<li>修正項目 (#2337) - <a href="libraries/email.html">Email Library</a> method <samp>print_debugger()</samp> was not using <samp>htmlspecialchar()</samp> when being shown in the browser.</li>
</ul>
<a name="2.1.3"></a>
<h2>版本 2.1.3</h2>
<p>發佈日期: October 8, 2012</p>
<h3>2.1.3 修正項目</h3>
<ul>
<li>Fixed a bug (#1543) - <a href="libraries/caching.html#file">File-based Caching</a> method <samp>get_metadata()</samp> used a non-existent array key to look for the TTL value.</li>
<li>Fixed a bug (#1314) - <a href="libraries/session.html">Session Library</a> method <samp>sess_destroy()</samp> didn't destroy the userdata array.</li>
<li>Fixed a bug where the <a href="libraries/profiler.html">Profiler Library</a> issued an E_WARNING error if <a href="libraries/session.html">Session</a> userdata contains objects.</li>
<li>Fixed a bug (#1699) - <a href="libraries/migration.html">Migration Library</a> ignored the <samp>$config['migration_path']</samp> setting.</li>
<li>Fixed a bug (#227) - <a href="libraries/input.html">Input Library</a> allowed unconditional spoofing of HTTP clients' IP addresses through the HTTP_CLIENT_IP header.</li>
<li>Fixed a bug (#907) - <a href="libraries/input.html">Input Library</a> ignored HTTP_X_CLUSTER_CLIENT_IP and HTTP_X_CLIENT_IP headers when checking for proxies.</li>
<li>Fixed a bug (#940) - <samp>csrf_verify()</samp> used to set the CSRF cookie while processing a POST request with no actual POST data, which resulted in validating a request that should be considered invalid.</li>
<li>Fixed a bug in the <a href="libraries/security.html">Security Library</a> where a CSRF cookie was created even if <samp>$config['csrf_protection']</samp> is set tot FALSE.</li>
<li>Fixed a bug (#1715) - <a href="libraries/input.html">Input Library</a> triggered <samp>csrf_verify()</samp> on CLI requests.</li>
</ul>
<a name="2.1.2"></a>
<h2>版本 2.1.2</h2>
<p>發佈日期: June 29, 2012</p>
<ul>
<li>一般變更
<ul>
<li>改善安全性函式 <kbd>xss_clean()</kbd>.</li>
</ul>
</li>
</ul>
<a name="2.1.1"></a>
<h2>版本 2.1.1</h2>
<p>發佈日期: June 12, 2012</p>
<ul>
<li>一般變更 General Changes
<ul>
<li>Fixed support for docx, xlsx files in mimes.php.</li>
</ul>
</li>
<li>函式庫 Libraries
<ul>
<li>Further improved MIME type detection in the <a href="libraries/file_uploading.html">File Uploading Library</a>.</li>
<li>Added support for IPv6 to the <a href="libraries/input.html">Input Library</a>.</li>
<li>Added support for the IP format parameter to the <a href="libraries/form_validation.html">Form Validation Library</a>.</li>
</ul>
</li>
<li>補助函式 Helpers
<ul>
<li><samp>url_title()</samp> performance and output improved. You can now use any string as the word delimiter. Backwards compatible with 'dash' or 'underscore' as words delimiters.</li>
</ul>
</li>
</ul>
<h3>2.1.1 修正項目</h3>
<ul>
<li>Fixed a bug (#697) - A wrong array key was used in the Upload library to check for mime-types.</li>
<li>Fixed a bug - form_open() compared $action against site_url() instead of base_url()</li>
<li>Fixed a bug - CI_Upload::_file_mime_type() could've failed if mime_content_type() is used for the detection and returns FALSE.</li>
<li>Fixed a bug (#538) - Windows paths were ignored when using the <a href="libraries/image_lib.html">Image Manipulation Class</a> to create a new file.</li>
<li>Fixed a bug - When database caching was enabled, $this->db->query() checked the cache before binding variables which resulted in cached queries never being found.</li>
<li>Fixed a bug - CSRF cookie value was allowed to be any (non-empty) string before being written to the output, making code injection a risk.</li>
<li>Fixed a bug (#726) - PDO put a 'dbname' argument in it's connection string regardless of the database platform in use, which made it impossible to use SQLite.</li>
<li>Fixed a bug - CI_DB_pdo_result::num_rows() was not returning properly value with SELECT queries, cause it was relying on PDOStatement::rowCount().</li>
<li>Fixed a bug (#1059) - CI_Image_lib::clear() was not correctly clearing all necessary object properties, namely width and height.</li>
</ul>
<a name="2.1.0"></a>
<h2>版本 2.1.0</h2>
<p>發佈日期: November 14, 2011</p>
<ul>
<li>一般變更 General Changes
<ul>
<li>Fixed a potential parameter injection flaw in the <a href="libraries/security.html">Security Library</a> and strengthened the XSS filter for HTML5 vulnerabilites.</li>
<li>Callback validation rules can now accept parameters like any other validation rule.</li>
<li>Added html_escape() to the <a href="general/common_functions.html">Common functions</a> to escape HTML output for preventing XSS easliy.</li>
</ul>
</li>
<li>補助函式 Helpers
<ul>
<li>Added <samp>increment_string()</samp> to <a href="helpers/string_helper.html">String Helper</a> to turn "foo" into "foo-1" or "foo-1" into "foo-2".</li>
<li>Altered form helper - made action on form_open_multipart helper function call optional. Fixes (#65)</li>
<li><samp>url_title()</samp> will now trim extra dashes from beginning and end.</li>
<li>Improved speed of <a href="helpers/string_helper.html">String Helper</a>'s <b>random_string()</b> method</li>
</ul>
</li>
<li>資料庫 Database
<ul>
<li>Added a <a href="http://www.cubrid.org/" target="_blank">CUBRID</a> driver to the <a href="libraries/database.html">Database driver</a>. Thanks to the CUBRID team for supplying this patch.</li>
<li>Added a <a href="http://www.php.net/manual/en/intro.pdo.php" target="_blank">PDO</a> driver to the <a href="libraries/database.html">Database driver</a>.</li>
<li>Typecast limit and offset in the <a href="database/queries.html">Database driver</a> to integers to avoid possible injection.</li>
<li>Added additional option 'none' for the optional third argument for <kbd>$this->db->like()</kbd> in the <a href="database/active_record.html">Database driver</a>.
</li>
<li>Added <kbd>$this->db->insert_batch()</kbd> support to the OCI8 (Oracle) driver.</li>
</ul>
</li>
<li>函式庫 Libraries
<ul>
<li>Changed <kbd>$this->cart->insert()</kbd> in the <a href="libraries/cart.html">Cart library</a> to return the Row ID if a single item was inserted successfully.</li>
<li>Added support to set an optional parameter in your callback rules of validation using the <a href="libraries/form_validation.html">Form Validation library</a>.</li>
<li>Added a <a href="libraries/migration.html">Migration library</a> to assist with applying incremental updates to your database schema.</li>
<li>Driver children can be located in any package path.</li>
<li>Added <samp>is_unique</samp> to the <a href="libraries/form_validation.html">Form Validation library</a>.</li>
<li>Added <kbd>$config['use_page_numbers']</kbd> to the <a href="libraries/pagination.html">Pagination library</a>, which enables real page numbers in the URI.</li>
<li>Added TLS and SSL Encryption for SMTP.</li>
</ul>
</li>
<li>核心程式 Core
<ul>
<li>Changed private functions in <a href="libraries/cart.html">URI library</a> to protected so <kdb>MY_URI</kdb> can override them.</li>
<li>Removed <samp>CI_CORE</samp> boolean constant from CodeIgniter.php (there are no longer different Reactor and Core versions).</li>
</ul>
</li>
</ul>
<h3>2.1.0 Bugs 修正</h3>
<ul>
<li>Fixed #378 Robots identified as regular browsers by the <a href="libraries/user_agent.html">User Agent class</a>.</li>
<li>If a config class was loaded first then a library with the same name is loaded, the config would be ignored.</li>
<li>Fixed a bug (Reactor #19) where 1) the 404_override route was being ignored in some cases, and 2) auto-loaded libraries were not available to the 404_override controller when a controller existed but the requested method did not.</li>
<li>Fixed a bug (Reactor #89) where MySQL export would fail if the table had hyphens or other non alphanumeric/underscore characters.</li>
<li>Fixed a bug (#200) where MySQL queries would be malformed after calling <kbd>$this->db->count_all()</kbd> then <kdb>$this->db->get()</kdb></li>
<li>Fixed bug #105 that stopped query errors from being logged unless database debugging was enabled</li>
<li>Fixed a bug (#160) - Removed unneeded array copy in the file cache driver.</li>
<li>Fixed a bug (#150) - <samp>field_data()</samp> now correctly returns column length.</li>
<li>Fixed a bug (#8) - <samp>load_class()</samp> now looks for core classes in <samp>APPPATH</samp> first, allowing them to be replaced.</li>
<li>Fixed a bug (#24) - ODBC database driver called incorrect parent in __construct().</li>
<li>Fixed a bug (#85) - OCI8 (Oracle) database <kbd>escape_str()</kbd> function did not escape correct.</li>
<li>Fixed a bug (#344) - Using schema found in <a href="libraries/sessions.html">Saving Session Data to a Database</a>, system would throw error "user_data does not have a default value" when deleting then creating a session.</li>
<li>Fixed a bug (#112) - OCI8 (Oracle) driver didn't pass the configured database character set when connecting.</li>
<li>Fixed a bug (#182) - OCI8 (Oracle) driver used to re-execute the statement whenever num_rows() is called.</li>
<li>Fixed a bug (#82) - WHERE clause field names in the DB <kbd>update_string()</kbd> method were not escaped, resulting in failed queries in some cases.</li>
<li>Fixed a bug (#89) - Fix a variable type mismatch in DB <kbd>display_error()</kbd> where an array is expected, but a string could be set instead.</li>
<li>Fixed a bug (#467) - Suppress warnings generated from <kbd>get_magic_quotes_gpc()</kbd> (deprecated in PHP 5.4)</li>
<li>Fixed a bug (#484) - First time <kbd>_csrf_set_hash()</kbd> is called, hash is never set to the cookie (in Security.php).</li>
<li>Fixed a bug (#60) - Added <kbd>_file_mime_type()</kbd> method to the <a href="libraries/file_uploading.html">File Uploading Library</a> in order to fix a possible MIME-type injection (also fixes bug #394).</li>
<li>Fixed a bug (#537) - Support for all wav type in browser.</li>
<li>Fixed a bug (#576) - Using <kbd>ini_get()</kbd> function to detect if apc is enabled or not.</li>
<li>Fixed invalid date time format in <a href="helpers/date_helper.html">Date helper</a> and <a href="libraries/xmlrpc.html">XMLRPC library</a>.</li>
</ul>
<a name="2.0.3"></a>
<h2>版本 2.0.3</h2>
<p>發佈日期: August 20, 2011</p>
<ul>
<li>安全性 Security
<ul>
<li>An improvement was made to the MySQL and MySQLi drivers to prevent exposing a potential vector for SQL injection on sites using multi-byte character sets in the database client connection. <p>An incompatibility in PHP versions < 5.2.3 and MySQL < 5.0.7 with <em>mysql_set_charset()</em> creates a situation where using multi-byte character sets on these environments may potentially expose a SQL injection attack vector. Latin-1, UTF-8, and other "low ASCII" character sets are unaffected on all environments.</p> <p class="critical">If you are running or considering running a multi-byte character set for your database connection, please pay close attention to the server environment you are deploying on to ensure you are not vulnerable.</p></li>
</ul>
<li>一般變更 General changes
<ul>
<li>Fixed a bug where there was a misspelling within a code comment in the index.php file.</li>
<li>Added Session Class userdata to the output profiler. Additionally, added a show/hide toggle on HTTP Headers, Session Data and Config Variables.</li>
<li>Removed internal usage of the <samp>EXT</samp> constant.</li>
<li>Visual updates to the welcome_message view file and default error templates. Thanks to <a href="https://bitbucket.org/danijelb">danijelb</a> for the pull request.</li>
<li>Added "application/x-csv" to mimes.php.</li>
<li>Fixed a bug where <a href="libraries/email.html">Email library</a> attachments with a "." in the name would using invalid MIME-types.</li>
<li>Callback validation rules can now accept parameters like any other validation rule.</li>
</ul>
</li>
<li>補助函式 Helpers
<ul>
<li>Added an optional third parameter to <samp>heading()</samp> which allows adding html attributes to the rendered heading tag.</li>
<li><kbd>form_open()</kbd> now only adds a hidden (Cross-site Reference Forgery) protection field when the form's action is internal and is set to the post method. (Reactor #165)</li>
<li>Re-worked <samp>plural()</samp> and <samp>singular()</samp> functions in the <a href="helpers/inflector_helper.html">Inflector helper</a> to support considerably more words.</li>
</ul>
</li>
<li>函式庫 Libraries
<ul>
<li>Altered Session to use a longer match against the user_agent string. See upgrade notes if using database sessions.</li>
<li>Added <kbd>is_unique</kbd> to the <a href="libraries/form_validation.html">Form Validation library</a>.</li>
<li>Added <kbd>$this->db->set_dbprefix()</kbd> to the <a href="database/queries.html">Database Driver</a>.</li>
<li>Changed <kbd>$this->cart->insert()</kbd> in the <a href="libraries/cart.html">Cart Library</a> to return the Row ID if a single item was inserted successfully.</li>
<li>Added <kbd>$this->load->get_var()</kbd> to the <a href="libraries/loader.html">Loader library</a> to retrieve global vars set with <kbd>$this->load->view()</kbd> and <kbd>$this->load->vars()</kbd>.</li>
<li>Changed <kbd>$this->db->having()</kbd> to insert quotes using escape() rather than escape_str().</li>
</ul>
</li>
</ul>
<h3>2.0.3 修正</h3>
<ul>
<li>Added ENVIRONMENT to reserved constants. (Reactor #196)</li>
<li>Changed server check to ensure SCRIPT_NAME is defined. (Reactor #57)</li>
<li>Removed <samp>APPPATH.'third_party'</samp> from the packages autoloader to negate needless file stats if no packages exist or if the developer does not load any other packages by default.</li>
<li>Fixed a bug (Reactor #231) where Sessions Library database table example SQL did not contain an index on last_activity. See <a href="installation/upgrade_203.html">Upgrade Notes</a>.</li>
<li>Fixed a bug (Reactor #229) where the Sessions Library example SQL in the documentation contained incorrect SQL.</li>
<li>Fixed a bug (Core #340) where when passing in the second parameter to $this->db->select(), column names in subsequent queries would not be properly escaped.</li>
<li>Fixed issue #199 - Attributes passed as string does not include a space between it and the opening tag.</li>
<li>Fixed a bug where the method <kbd>$this->cart->total_items()</kbd> from <a href="libraries/cart.html">Cart Library</a> now returns the sum of the quantity of all items in the cart instead of your total count.</li>
<li>Fixed a bug where not setting 'null' when adding fields in db_forge for mysql and mysqli drivers would default to NULL instead of NOT NULL as the docs suggest.</li>
<li>Fixed a bug where using <kbd>$this->db->select_max()</kdb>, <kbd>$this->db->select_min()</kdb>, etc could throw notices. Thanks to w43l for the patch.</li>
<li>Replace checks for STDIN with php_sapi_name() == 'cli' which on the whole is more reliable. This should get parameters in crontab working.</li>
</ul>
<a name="2.0.2"></a>
<h2>版本 2.0.2</h2>
<p>發佈日期: 2011年4月7日<br />
Hg 標籤: v2.0.2</p>
<ul>
<li>一般變更 (General changes)
<ul>
<li>CodeIgniter 將 <a href="./libraries/security.html">Security library</a> 納入核心的一部分，網頁執行時候自動載入，請移除原來載入的程式碼Please remove your loading calls.</li>
<li>CI_SHA 類別已經被移除，所有 PHP 版本提供了 <kbd>sha1()</kbd> 函式給大家使用</li>
<li>假如 environment 目錄存在 <kbd>constants.php</kbd> 檔案，<kbd>constants.php</kbd> 會依照 environment 目錄自動載入。</li>
<li>增加 language key 錯誤回報紀錄 (log)</li>
<li>可以選擇性的使用 Environment 設定，可以註解或者是刪除來取消 environment 偵測 (check)</li>
<li>針對 Hooks，增加 Environment 支援</li>
<li>增加 <a href="libraries/caching.html">Cache driver</a> 前置符號 CI_ Prefix</li>
</ul>
</li>
<li>補助函式 (Helpers)
<ul>
<li>從 <a href="./helpers/security_helper.html">Security helper</a> 移除之前棄用的 <kbd>dohash()</kbd> 函式，用 <kbd>do_hash()</kbd> 函式取代</li>
<li>改寫了 'plural' 功能，以便它不會破壞字串 capitalization。它也考慮到這是全部大寫字母縮寫</li>
</ul>
</li>
<li>資料庫 (Database)
<ul>
<li>將 <kbd>$this->db->count_all_results()</kbd> 回傳值從原本的字串(string)取代成整數(integer)</li>
</ul>
</li>
</ul>
<h3>2.0.2 修正</h3>
<ul>
<li>修正 (<a href="https://bitbucket.org/ellislab/codeigniter-reactor/issue/145/output-lib-parse_exec_vars-scope">Reactor #145</a>) 將 Output Library 的 parse_exec_vars scope 從原本 protected 轉換為 public</li>
<li>修正 (<a href="https://bitbucket.org/ellislab/codeigniter-reactor/issue/80/is_really_writable-bug-on-windows-servers">Reactor #80</a>) 當啟動 safe_mode 或者是在 Windows 環境，is_really_writable 將會新增一個空白檔案</li>
<li>修正一些錯誤線上文件</li>
<li>增加 <a href="libraries/input.html">Input class</a> 函式 is_cli_request() method 線上文件</li>
<li>針對 <kbd>decimal</kbd>, <kbd>less_than</kbd> 和 <kbd>greater_than</kbd> 增加 form_validation_lang 語系</li>
<li><a href="https://bitbucket.org/ellislab/codeigniter-reactor/issue/153/escape-str-bug-in-mssql-driver">修正 issue #153</a> 針對 MSSQL driver 跳脫字串 (Escape Str)</li>
<li><a href="https://bitbucket.org/ellislab/codeigniter-reactor/issue/172/bug-in-chrome-and-form_open-in-201">修正 issue #172</a> 當 action 是空值時，會造成 Google Chrome 11 瀏覽器 posts 資料錯誤</li>
</ul>
<a name="2.0.1"></a>
<h2>版本 2.0.1</h2>
<p>發佈日期: 2011年3月15日<br />
Hg 標籤: v2.0.1</p>
<ul>
<li>一般變更 (General changes)
<ul>
<li>在設定檔增加一個新的設定 $config['cookie_secure'] 允許要求用安全的 (HTTPS) 來設置 cookies</li>
<li>新增 <kbd>CI_CORE</kbd> 變數去區別 Core: TRUE and Reactor: FALSE.</li>
<li>新增 <kbd>ENVIRONMENT</kbd> 變數到 index.php, 作用於PHP的錯誤回報設定 (error reporting settings)，且為可選擇性的，會被被設定檔讀取，參考更多 <a href="general/environments.html">Handling Environments</a> 說明文件</li>
<li>新增支援 <a href="libraries/config.html#environments">environment-specific</a> 環境變數檔案.</li>
</ul>
</li>
<li>程式庫 (Libraries)
<ul>
<li>新增 <kbd>decimal</kbd>, <kbd>less_than</kbd> 和 <kbd>greater_than</kbd> 規則到 <a href="libraries/form_validation.html">Form validation Class</a>.</li>
<li>假如沒有提供第一個參數，<a href="libraries/input.html">Input Class</a> methods <kbd>post()</kbd> and <kbd>get()</kbd> 將會回傳陣列 (Full Array)。</li>
<li>Secure cookies 可以經由 <kbd>set_cookie()</kbd> 補助函式(helper) 和 <a href="libraries/input.html">Input Class</a> method 來產生。</li>
<li>新增函式 set_content_type() 至 <a href="libraries/output.html">Output Class</a> 來設置輸出 Content-Type HTTP header 設置為 MIME Type 或一個 config/mimes.php 陣列鍵值.</li>
<li><a href="libraries/output.html">Output Class</a> 現在支援方法鏈結 (->method->method).</li>
</ul>
</li>
<li>補助函式 (Helpers)
<ul>
<li>修改 <a href="helpers/form_helper.html">Form helper</a> 裡 <kbd>form_open()</kbd> 程式，假如沒有傳入任何值，它將會使用目前網址(current URL)送出。</li>
</ul>
</li>
</ul>
<h3>2.0.1 修正</h3>
<ul>
<li>CLI(Command Line Interface) 可以在任意目錄執行，不需要切換到根目錄 index.php 地方。</li>
<li>修正 #41: 增加 audio/mp3 mp3 的 mime 類型。</li>
<li>修正 (Core #329) caching driver 使用不正確的暫存目錄(cache directory)。</li>
<li>修正 (Reactor #69) SHA1 library 錯誤命名。</li>
</ul>
<a name="2.0.0"></a>
<h2>版本 2.0.0</h2>
<p>發佈日期: 2011年1月28日<br />
Hg 標籤: v2.0.0</p>
<ul>
<li>一般變更
<ul>
<li> 不再支援PHP 4， CodeIgniter 目前的PHP版本需求是 PHP 5.1.6.</li>
<li>Scaffolding, 已在前幾個版本被標為(deprecated)不建議再使用, 在此版本已移除。</li>
<li>外掛(Plugins) 已被移除, 請愛用 輔助函數(Helpers). CAPTCHA 外掛(plugin) 已被轉換成 輔助函數(Helper) (<a href="./helpers/captcha_helper.html">參閱文件)</a>. JavaScript 的日曆 plugin 已移除, 因為JavaScript的日曆已夠強大, 尤其是 jQuery.</li>
<li>新增新的特別程式庫: <a href="./general/drivers.html">Drivers</a>.</li>
<li>新增完整的 query-string 支援. 詳細請看設定檔 config.php</li>
<li>將application資料夾移出 system資料夾之外</li>
<li>移動 system/cache 和 system/logs 資料夾至 application資料夾中.</li>
<li>新增 路由覆蓋(routing overrides) 至主要的 index.php 檔案, 啟用路由(routing) 來覆蓋 (overridding) 每個 "index" 檔案.</li>
<li>新增 可以直接在主要的index.php 檔案中定義新的 設定值(或覆寫設定值)的功能. 這允許單一的應用程式(application) 可使用多個前端控制器(front controllers), 並擁有各自的設定值.</li>
<li>新增設定<kbd> $config['directory_trigger']</kbd> 到設定檔中讓控制器(controller)的子目錄可以指定執行 _GET 字串來取代 URI片段 (URI segments).</li>
<li>新增設置 "Package" 路徑的功能 - 定義Loader和Config類別要由哪個路徑嘗試尋找要求的檔案. 這允許在一個 "package" 資料夾中, 佈署子應用程式擁有自己的程式庫(libraries), 模型(models), 設定檔(config files)...等等... . 詳閱 <a href="libraries/loader.html">Loader class</a> 文件.</li>
<li>發展中的新版本現在設在 <a href="http://bitbucket.org/ellislab/codeigniter-reactor/">BitBucket</a>. 上</li>
<li>移除不建議再使用的 驗證類別(Validation Class).</li>
<li>新增 CI_ 前綴詞(Prefix) 至所有核心類別</li>
<li>Package 路徑現在可以設置在 application/config/autoload.php 中</li>
<li><a href="libraries/file_uploading.html">上傳程式庫(Upload library)</a> 的 file_name 現在可以不用設置副檔名, 副檔名將會由上傳檔案的副檔名取代</li>
<li>在<a href="database/forge.html">Database Forge</a> 中, 函式 $this->dbforge->modify_column() 的第二個參數名稱可以被忽略, 如果你沒有要更改名稱</li>
<li><kbd>$config['base_url']</kbd> 現在預設為空值且會自動猜測應該的設置</li>
<li>啟用完整的命令列介面(Command Line Interface)相容支援: <kbd>config['uri_protocol'] = 'CLI';</kbd>.</li>
</ul>
<li>程式庫 (Libraries)
<ul>
<li>新增 <a href="libraries/caching.html">Cache driver</a> 來支援 APC, memcached, 和 file-based.</li>
<li>新增 <var>$prefix</var>, <var>$suffix</var> 和 <var>$first_url</var> 屬性至 <a href="./libraries/pagination.html">分頁程式庫(Pagination library)</a>.</li>
<li>新增功能 防止設置 first, previous, next, last, 和 page links 為 FALSE 當使用分頁程式庫(<a href="./libraries/pagination.html">Pagination library</a>)時.</li>
<li>新增<a href="./libraries/security.html">Security library</a>, 現在包含 <dfn>xss_clean</dfn> 函式, <dfn>filename_security</dfn> 函式和其他安全相關的函式庫.</li>
<li>新增跨站請求偽造 (CSRF : Cross-site Reference Forgery) 的保護至 <a href="./libraries/security.html">Security程式庫(Security library)</a>.</li>
<li>新增 <var>$parse_exec_vars</var> 屬性至 輸出程式庫(Output library).</li>
<li>新增能開啟TRUE或關閉FALSE的選項至 <a href="general/profiling.html">Profiler</a></li>
<li>新增萬用字元選項 <kbd>$config['allowed_types'] = '*'</kbd> 至 <a href="./libraries/file_uploading.html">File Uploading Class</a>.</li>
<li>新增一個 '物件(object)' 設置參數至 XML-RPC 伺服器程式庫(XML-RPC Server library), 因此可以設置要求方法的物件, 取代原本要假設它在 $CI 父物件中.</li>
<li>新增 "is_object" 到單元測試(unit tests)的列表, 能夠被執行</li>
<li>表格程式庫(Table library) 將產生擁有空字串的空儲存格, 或是 NULL 值.</li>
<li>新增功能 能設置標籤屬性至個人定義的儲存格 當使用 表格程式庫(Table library)時</li>
<li>新增 <kbd>parse_string()</kbd> 方法至 <a href="libraries/parser.html">分析類別(Parser Class</a>).</li>
<li>新增HTTP 標頭和設定檔資訊至 <a href="general/profiling.html">Profiler</a> 的輸出.</li>
<li>新增Chrome 和 Flock 至可偵測的瀏覽器列表中, 藉由 <kbd>browser()</kbd> 在 <a href="libraries/user_agent.html">User Agent Class</a> 中.</li>
<li><a href="libraries/unit_testing.html">單元測試類別(Unit Test Class)</a> 現在擁有一個可選擇的 "notes" 欄位, 使用 <kbd>$this->unit->set_test_items()</kbd>來允許分散顯示測試結果.</li>
<li>新增a <kbd>$xss_clean</kbd> 類別變數至 XMLRPC 程式庫, 控制開啟使用 安全程式庫(Security library)的 <kbd>xss_clean()</kbd> 方法.</li>
<li>新增 <kbd>download()</kbd> 方法至 <a href="libraries/ftp.html">FTP程式庫(FTP library)</a></li>
<li>改變 <kbd>do_xss_clean()</kbd> 回傳 FALSE 如果上傳的檔案未通過跨網站指令碼(XSS) 檢查.</li>
<li>新增stripslashes() 和 trim()ing 來去除重複的雙引號和斜線來標準化輸入在 $_FILES 類型中的值 ,至上傳程式庫(Upload library)中.</li>
<li>新增第二個參數 (布林boolean) 至 <kbd>$this->zip->read_dir('/path/to/directory', FALSE)</kbd> 來移除前面包含的空的資料夾當產生一個壓縮檔(Zip archive)時. 此範例將壓縮 "目錄directory" 和所有內容至一個zip中.</li>
<li>新增功能在 圖像程式庫(Image Library), 當使用 GD lib 來處理 PNG 透明縮圖操作時 </li>
<li>修改 Session 類別, 避使用在設定檔中未加密的鍵值</li>
<li>新增設置選項至 Session 類別 <kbd>sess_expire_on_close</kbd> , 允許 sessions 自動過期, 當瀏覽器視窗關閉後</li>
<li>增強 加密程式庫(Encryption library)使用Mcrypt在伺服器上的效能</li>
<li>更改預設的加密模式在 加密程式庫(Encryption library)中, 變更為 CBC.</li>
<li>新增一個 <kbd>encode_from_legacy()</kbd> 方法來轉換加密後的資料從 CodeIgniter 1.x 至 CodeIgniter 2.x. 詳細請看 <a href="./installation/upgrade_200.html">升級指令(upgrade instructions)</a></li>
<li>更改 表單檢查程式庫(Form_Validation library) 來允許使用方法鍊結(method chaining) 當使用 <kbd>set_rules()</kbd>, <kbd>set_message()</kbd> 和 <kbd>set_error_delimiters()</kbd> 函式時.</li>
<li>更改 郵件程式庫(Email Library) 來允許使用方法鍊結(method chaining).</li>
<li>新增<kbd>request_headers()</kbd>, <kbd>get_request_header()</kbd> 和 <kbd>is_ajax_request()</kbd> 至輸入類別(input class).</li>
<li>變更 <a href="libraries/user_agent.html">User agent library</a> 因此 <kbd>is_browser()</kbd>, <kbd>is_mobile()</kbd> 和 <kbd>is_robot()</kbd> 可以選擇性地檢查特定的瀏覽器或是手機裝置</li>
</ul>
</li>
<li>資料庫(Database)
<ul>
<li><a href="./database/configuration.html">資料庫配置database configuration</a>.</li>
<li>新增<kbd>autoinit</kbd> 值至 <a href="./database/configuration.html">database configuration</a>.</li>
<li>新增<kbd>stricton</kbd> 值至 <a href="./database/configuration.html">database configuration</a>.</li>
<li>新增<kbd>database_exists()</kbd> 至 <a href="database/utilities.html">資料庫工具類別Database Utilities Class</a>.</li>
<li>Semantic change to db->version() function to allow a list of exceptions for databases with functions to return version string instead of specially formed SQL queries. Currently this list only includes Oracle and SQLite.</li>
<li>修正a bug where driver specific table identifier protection could lead to malformed queries in the <kbd>field_data()</kbd> functions.</li>
<li>修正a bug where an undefined class variable was referenced in database drivers.</li>
<li>Modified the database errors to show the filename and line number of the problematic query.</li>
<li>Removed the following deprecated functions: orwhere, orlike, groupby, orhaving, orderby, getwhere.</li>
<li>Removed deprecated _drop_database() and _create_database() functions from the db utility drivers.</li>
<li>Improved dbforge create_table() function for the Postgres driver.</li>
</ul>
</li>
<li>Helpers
<ul>
<li>新增<kbd>convert_accented_characters()</kbd> 函式至 <a href="./helpers/text_helper.html">text helper</a>.</li>
<li>新增accept-charset to the list of inserted attributes of <kbd>form_open()</kbd> in the <a href="helpers/form_helper.html">Form Helper</a>.</li>
<li>Deprecated the <kbd>dohash()</kbd> function in favour of <kbd>do_hash()</kbd> for naming consistency.</li>
<li>Non-backwards compatible change made to <kbd>get_dir_file_info()</kbd> in the <a href="helpers/file_helper.html">File Helper</a>. No longer recurses
by default so as to encourage responsible use (this function can cause server performance issues when used without caution).</li>
<li>Modified the second parameter of <kbd>directory_map()</kbd> in the <a href="helpers/directory_helper.html">Directory Helper</a> to accept an integer to specify recursion depth.</li>
<li>Modified <kbd>delete_files()</kbd> in the <a href="helpers/file_helper.html">File Helper</a> to return FALSE on failure.</li>
<li>新增an optional second parameter to <kbd>byte_format()</kbd> in the <a href="helpers/number_helper.html">Number Helper</a> to allow for decimal precision.</li>
<li>新增alpha, and sha1 string types to <kbd>random_string()</kbd> in the <a href="helpers/string_helper.html">String Helper</a>.</li>
<li>Modified <kbd>prep_url()</kbd> so as to not prepend http:// if the supplied string already has a scheme.</li>
<li>Modified <kbd>get_file_info</kbd> in the file helper, changing filectime() to filemtime() for dates.</li>
<li>Modified <kbd>smiley_js()</kbd> to add optional third parameter to return only the javascript with no script tags.</li>
<li>The <kbd>img()</kbd> function of the <a href="./helpers/html_helper.html">HTML helper</a> will now generate an empty string as an alt attribute if one is not provided.</li>
<li>If CSRF is enabled in the application config file, <kbd>form_open()</kbd> will automatically insert it as a hidden field.</li>
<li>新增<kbd>sanitize_filename()</kbd> into the <a href="./helpers/security_helper.html">Security helper</a>.</li>
<li>新增<kbd>ellipsize()</kbd> to the <a href="./helpers/text_helper.html">Text Helper</a></li>
<li>新增<kbd>elements()</kbd> to the <a href="./helpers/array_helper.html">Array Helper</a></li>
</ul>
</li>
<li>其他變更
<ul>
<li>新增一個可選擇的第二參數至 <kbd>show_404()</kbd> 來關閉記錄.</li>
<li>Updated loader to automatically apply the sub-class prefix as an option when loading classes. Class names can be pre修正with the standard "CI_" or the same prefix as the subclass prefix, or no prefix at all.</li>
<li>Increased randomness with <kbd>is_really_writable()</kbd> to avoid file collisions when hundreds or thousands of requests occur at once.</li>
<li>Switched some DIR_WRITE_MODE constant uses to FILE_WRITE_MODE where files and not directories are being operated on.</li>
<li><kbd>get_mime_by_extension()</kbd> is now case insensitive.</li>
<li>新增 "default" to the list <a href="general/reserved_names.html">Reserved Names</a>.</li>
<li>新增 'application/x-msdownload' for .exe files and ''application/x-gzip-compressed' for .tgz files to config/mimes.php.</li>
<li>Updated the output library to no longer compress output or send content-length headers if the server runs with zlib.output_compression enabled.</li>
<li>Eliminated a call to is_really_writable() on each request unless it is really needed (Output caching)</li>
<li>Documented <kbd>append_output()</kbd> in the <a href="libraries/output.html">Output Class</a>.</li>
<li>Documented a second argument in the <kbd>decode()</kbd> function for the <a href="libraries/encryption.html">Encryption Class</a>.</li>
<li>Documented db->close().</li>
<li>Updated the router to support a default route with any number of segments.</li>
<li>Moved _remove_invisible_characters() function from the <a href="libraries/security.html">Security Library</a> to <a href="general/common_functions.html">common functions.</a></li>
<li>新增audio/mpeg3 為一個有效的媒體格式: MP3.</li>
</ul>
</li>
</ul>
<h3>Bug fixes for 2.0.0</h3>
<ul>
<li>修正一個, 當你寄E-mail時無法改變 User-Agent 的錯誤</li>
<li>修正a bug where the Output class would send incorrect cached output for controllers implementing their own <dfn>_output()</dfn> method.</li>
<li>修正a bug where a failed query would not have a saved query execution time causing errors in the Profiler</li>
<li>修正a bug that was writing log entries when multiple identical helpers and plugins were loaded.</li>
<li>修正assorted user guide typos or examples (#10693, #8951, #7825, #8660, #7883, #6771, #10656).</li>
<li>修正a language key in the profiler: "profiler_no_memory_usage" to "profiler_no_memory".</li>
<li>修正an error in the Zip library that didn't allow downloading on PHP 4 servers.</li>
<li>修正a bug in the Form Validation library where fields passed as rule parameters were not being translated (#9132)</li>
<li>Modified inflector helper to properly pluralize words that end in 'ch' or 'sh'</li>
<li>修正a bug in xss_clean() that was not allowing hyphens in query strings of submitted URLs.</li>
<li>修正bugs in get_dir_file_info() and get_file_info() in the File Helper with recursion, and file paths on Windows.</li>
<li>修正a bug where Active Record override parameter would not let you disable Active Record if it was enabled in your database config file.</li>
<li>修正a bug in reduce_double_slashes() in the String Helper to properly remove duplicate leading slashes (#7585)</li>
<li>修正a bug in values_parsing() of the XML-RPC library which prevented NULL variables typed as 'string' from being handled properly.</li>
<li>修正a bug were form_open_multipart() didn't accept string attribute arguments (#10930).</li>
<li>修正a bug (#10470) where <kdb>get_mime_by_extension()</kbd> was case sensitive.</li>
<li>修正a bug where some error messages for the SQLite and Oracle drivers would not display.</li>
<li>修正a bug where files created with the Zip Library would result in file creation dates of 1980.</li>
<li>修正a bug in the Session library that would result in PHP error when attempting to store values with objects.</li>
<li>修正a bug where extending the Controller class would result in a fatal PHP error.</li>
<li>修正a PHP Strict Standards Error in the index.php file.</li>
<li>修正a bug where getimagesize() was being needlessly checked on non-image files in is_allowed_type().</li>
<li>修正a bug in the Encryption library where an empty key was not triggering an error.</li>
<li>修正a bug in the Email library where CC and BCC recipients were not reset when using the clear() method (#109).</li>
<li>修正a bug in the URL Helper where prep_url() could cause a PHP error on PHP versions < 5.1.2.</li>
<li>新增a log message in core/output if the cache directory config value was not found.</li>
<li>修正a bug where multiple libraries could not be loaded by passing an array to load->library()</li>
<li>修正a bug in the html helper where too much white space was rendered between the src and alt tags in the img() function.</li>
<li>修正一個在 profilers _compile_queries() 函式裡的錯誤.</li>
<li>修正a bug in the date helper where the DATE_ISO8601 variable was returning an incorrectly formatted date string.</li>
</ul>
<h2>版本 1.7.2</h2>
<p>發佈日期: 2009年9月11日<br />
Hg 標籤: v1.7.2</p>
<ul>
<li>Libraries
<ul>
<li>新增 <a href="libraries/cart.html">Cart 類別</a>.</li>
<li>新增the ability to pass $config['file_name'] for the <a href="libraries/file_uploading.html">File Uploading Class</a> and rename the uploaded file.</li>
<li>Changed order of listed user-agents so Safari would more accurately report itself. (#6844)</li>
</ul>
</li>
<li>Database
<ul>
<li>Switched from using gettype() in escape() to is_* methods, since future PHP versions might change its output.</li>
<li>Updated all database drivers to handle arrays in escape_str()</li>
<li>新增escape_like_str() method for escaping strings to be used in LIKE conditions</li>
<li>Updated Active Record to utilize the new LIKE escaping mechanism.</li>
<li>新增reconnect() method to DB drivers to try to keep alive / reestablish a connection after a long idle.</li>
<li>Modified MSSQL driver to use mssql_get_last_message() for error messages.</li>
</ul>
</li>
<li>Helpers
<ul>
<li>新增<kbd>form_multiselect()</kbd> to the <a href="helpers/form_helper.html">Form helper</a>.</li>
<li>Modified <kbd>form_hidden()</kbd> in the <a href="helpers/form_helper.html">Form helper</a> to accept multi-dimensional arrays.</li>
<li>Modified <kbd>form_prep()</kbd> in the <a href="helpers/form_helper.html">Form helper</a> to keep track of prepped fields to avoid multiple prep/mutation from subsequent calls which can occur when using Form Validation
and form helper functions to output form fields.</li>
<li>Modified <kbd>directory_map()</kbd> in the <a href="helpers/directory_helper.html">Directory helper</a> to allow the inclusion of hidden files, and to return FALSE on failure to read directory.</li>
<li>Modified the <a href="helpers/smiley_helper.html">Smiley helper</a> to work with multiple fields and insert the smiley at the last known cursor position.</li>
</ul>
</li>
<li>General
<ul>
<li>Compatible with PHP 5.3.0</li>
<li>Modified <a href="general/errors.html">show_error()</a> to allow sending of HTTP server response codes.</li>
<li>Modified <a href="general/errors.html">show_404()</a> to send 404 status code, removing non-CGI compatible header() statement from error_404.php template.</li>
<li>新增set_status_header() to the <a href="general/common_functions.html">Common functions<a> to allow use when the Output class is unavailable.</li>
<li>新增is_php() to <a href="general/common_functions.html">Common functions</a> to facilitate PHP version comparisons.</p>
<li>新增2 CodeIgniter "cheatsheets" (thanks to DesignFellow.com for this contribution).</li>
</ul>
</li>
</ul>
<h3>Bug fixes for 1.7.2</h3>
<ul>
<li>修正assorted user guide typos or examples (#6743, #7214, #7516, #7287, #7852, #8224, #8324, #8349).</li>
<li>修正a bug in the Form Validation library where multiple callbacks weren't working (#6110)</li>
<li>doctype helper default value was missing a "1".</li>
<li>修正a bug in the language class when outputting an error for an unfound file.</li>
<li>修正a bug in the Calendar library where the shortname was output for "May".</li>
<li>修正a bug with ORIG_PATH_INFO that was allowing URIs of just a slash through.</li>
<li>修正a fatal error in the Oracle and ODBC drivers (#6752)</li>
<li>修正a bug where xml_from_result() was checking for a nonexistent method.</li>
<li>修正a bug where Database Forge's add_column and modify_column were not looping through when sent multiple fields.</li>
<li>修正a bug where the File Helper was using '/' instead of the DIRECTORY_SEPARATOR constant.</li>
<li>修正a bug to prevent PHP errors when attempting to use sendmail on servers that have manually disabled the PHP popen() function.</li>
<li>修正a bug that would cause PHP errors in XML-RPC data if the PHP data type did not match the specified XML-RPC type.</li>
<li>修正a bug in the XML-RPC class with parsing dateTime.iso8601 data types.</li>
<li>修正a case sensitive string replacement in xss_clean()</li>
<li>修正a bug in form_textarea() where form data was not prepped correctly.</li>
<li>修正a bug in form_prep() causing it to not preserve entities in the user's original input when called back into a form element</li>
<li>修正a bug in _protect_identifiers() where the swap prefix ($swap_pre) was not being observed.</li>
<li>修正a bug where the 400 status header sent with the 'disallowed URI characters' was not compatible with CGI environments.</li>
<li>修正a bug in the typography class where heading tags could have paragraph tags inserted when using auto_typography().</li>
</ul>
<h2>版本 1.7.1</h2>
<p>發佈日期: 2009年2月10日<br />
Hg 標籤: 1.7.1</p>
<ul>
<li>Libraries
<ul>
<li>修正an arbitrary script execution security flaw (#6068) in the Form Validation library (thanks to hkk)</li>
<li>Changed default current page indicator in the Pagination library to use <strong> instead of <b></li>
<li>A "HTTP/1.1 400 Bad Request" header is now sent when disallowed characters are encountered.</li>
<li>新增 <big>, <small>, <q>, and <tt> to the Typography parser's inline elements.</li>
<li>新增more accurate error reporting for the Email library when using sendmail.</li>
<li>Removed a strict type check from the <kbd>rotate()</kbd> function of the <a href="libraries/image_lib.html">Image Manipulation Class</a>.</li>
<li>新增enhanced error checking in file saving in the Image library when using the GD lib.</li>
<li>新增an additional newline between multipart email headers and the MIME message text for better compatibility with a variety of MUAs.</li>
<li>Made modest improvements to efficiency and accuracy of explode_name() in the Image lib.</li>
</ul>
</li>
<li>Database
<ul>
<li>新增where_in to the list of expected arguments received by <kbd>delete()</kbd>.</li>
</ul>
</li>
<li>Helpers
<ul>
<li>新增the ability to have optgroups in <kbd>form_dropdown()</kbd> within the <a href="helpers/form_helper.html">form helper</a>.</li>
<li>新增a doctype() function to the <a href="helpers/html_helper.html">HTML helper</a>.</li>
<li>新增ability to force lowercase for <kbd>url_title()</kbd> in the <a href="helpers/url_helper.html">URL helper</a>.</li>
<li>Changed the default "type" of <kbd>form_button()</kbd> to "button" from "submit" in the <a href="helpers/form_helper.html">form helper</a>.</li>
<li>Changed redirect() in the URL helper to allow redirections to URLs outside of the CI site.</li>
<li>Updated get_cookie() to try to fetch the cookie using the global cookie prefix if the requested cookie name doesn't exist.</li>
</ul>
</li>
<li>Other Changes
<ul>
<li>Improved security in <kbd>xss_clean()</kbd> to help prevent attacks targeting Internet Explorer.</li>
<li>新增 'application/msexcel' to config/mimes.php for .xls files.</li>
<li>新增 'proxy_ips' config item to whitelist reverse proxy servers from which to trust the HTTP_X_FORWARDED_FOR header to
to determine the visitor's IP address.</li>
<li>Improved accuracy of Upload::is_allowed_filetype() for images (#6715)</li>
</ul>
</li>
</ul>
<h3>Bug fixes for 1.7.1</h3>
<ul>
<li>Database
<ul>
<li>修正a bug when doing 'random' on order_by() (#5706).</li>
<li>修正a bug where adding a primary key through Forge could fail (#5731).</li>
<li>修正a bug when using DB cache on multiple databases (#5737).</li>
<li>修正a bug where TRUNCATE was not considered a "write" query (#6619).</li>
<li>修正a bug where csv_from_result() was checking for a nonexistent method.</li>
<li>修正a bug _protect_identifiers() where it was improperly removing all pipe symbols from items</li>
</ul>
</li>
<li>修正assorted user guide typos or examples (#5998, #6093, #6259, #6339, #6432, #6521).</li>
<li>修正a bug in the MySQLi driver when no port is specified</li>
<li>修正a bug (#5702), in which the field label was not being fetched properly, when "matching" one field to another.</li>
<li>修正a bug in which identifers were not being escaped properly when reserved characters were used.</li>
<li>修正a bug with the regular expression used to protect submitted paragraph tags in auto typography.</li>
<li>修正a bug where double dashes within tag attributes were being converted to em dash entities.</li>
<li>修正a bug where double spaces within tag attributes were being converted to non-breaking space entities.</li>
<li>修正some accuracy issues with curly quotes in Typography::format_characters()</li>
<li>Changed a few docblock comments to reflect actual return values.</li>
<li>修正a bug with high ascii characters in subject and from email headers.</li>
<li>修正a bug in xss_clean() where whitespace following a validated character entity would not be preserved.</li>
<li>修正a bug where HTML comments and <pre> tags were being parsed in Typography::auto_typography().</li>
<li>修正a bug with non-breaking space cleanup in Typography::auto_typography().</li>
<li>修正a bug in database escaping where a compound statement (ie: SUM()) wasn't handled correctly with database prefixes.</li>
<li>修正a bug when an opening quote is preceded by a paragraph tag and immediately followed by another tag.</li>
<li>修正a bug in the Text Helper affecting some locales where word_censor() would not work on words beginning or ending with an accented character.</li>
<li>修正a bug in the Text Helper character limiter where the provided limit intersects the last word of the string.</li>
<li>修正a bug (#6342) with plural() in the Inflection helper with words ending in "y".</li>
<li>修正bug (#6517) where Routed URI segments returned by URI::rsegment() method were incorrect for the default controller.</li>
<li>修正a bug (#6706) in the Security Helper where xss_clean() was using a deprecated second argument.</li>
<li>修正a bug in the URL helper url_title() function where trailing periods were allowed at the end of a URL.</li>
<li>修正a bug (#6669) in the Email class when CRLF's are used for the newline character with headers when used with the "mail" protocol.</li>
<li>修正a bug (#6500) where URI::A_filter_uri() was exit()ing an error instead of using show_error().</li>
<li>修正a bug (#6592) in the File Helper where get_dir_file_info() where recursion was not occurring properly.</li>
<li>Tweaked Typography::auto_typography() for some edge-cases.</li>
</ul>
<h2>版本 1.7</h2>
<p>發佈日期: 2008年10月23日<br />
Hg 標籤: 1.7.0</p>
<ul>
<li>Libraries
<ul>
<li>新增a new <a href="libraries/form_validation.html">Form Validation Class</a>. It simplifies setting rules and field names, supports arrays as field names, allows groups of validation rules to be saved in a config file, and adds some helper functions for use in view files. <strong>Please note that the old Validation class is now deprecated</strong>. We will leave it in the library folder for some time so that existing applications that use it will not break, but you are encouraged to migrate to the new version.</li>
<li>Updated the <a href="libraries/sessions.html">Sessions class</a> so that any custom data being saved gets stored to a database rather than the session cookie (assuming you are using a database to store session data), permitting much more data to be saved.</li>
<li>新增the ability to store libraries in subdirectories within either the main "libraries" or the local application "libraries" folder. Please see the <a href="libraries/loader.html">Loader class</a> for more info.</li>
<li>新增the ability to assign library objects to your own variable names when you use <kbd>$this->load->library()</kbd>. Please see the <a href="libraries/loader.html">Loader class</a> for more info.</li>
<li>新增controller class/method info to <a href="general/profiling.html">Profiler class</a> and support for multiple database connections.</li>
<li>Improved the "auto typography" feature and moved it out of the helper into its own <a href="libraries/typography.html">Typography Class</a>.</li>
<li>Improved performance and accuracy of <kbd>xss_clean()</kbd>, including reduction of false positives on image/file tests.</li>
<li>Improved <a href="./libraries/parser.html">Parser class</a> to allow multiple calls to the parse() function. The output of each is appended in the output.</li>
<li>新增<dfn>max_filename</dfn> option to set a file name length limit in the <a href="libraries/file_uploading.html">File Upload Class</a>.</li>
<li>新增<dfn>set_status_header()</dfn> function to <a href="libraries/output.html">Output class</a>.</li>
<li>Modified <a href="libraries/pagination.html">Pagination</a> class to only output the "First" link when the link for page one would not be shown.</li>
<li>新增support for mb_strlen in the <a href="libraries/form_validation.html">Form Validation</a> class so that multi-byte languages will calculate string lengths properly.</li>
</ul>
</li>
<li>Database
<ul>
<li>Improved Active Record class to allow full path column and table names: hostname.database.table.column. Also improved the alias handling.</li>
<li>Improved how table and column names are escaped and pre修正. It now honors full path names when adding prefixes and escaping.</li>
<li>新增Active Record caching feature to "update" and "delete" functions.</li>
<li>新增removal of non-printing control characters in <kbd>escape_str()</kbd> of DB drivers that do not have native PHP escaping mechanisms (mssql, oci8, odbc), to avoid potential SQL errors, and possible sources of SQL injection.</li>
<li>新增port support to MySQL, MySQLi, and MS SQL database drivers.</li>
<li>新增driver name variable in each DB driver, based on bug report #4436.</li>
</ul>
</li>
<li>Helpers
<ul>
<li>新增several new "setting" functions to the <a href="helpers/form_helper.html">Form helper</a> that allow POST data to be retrieved and set into forms. These are intended to be used on their own, or with the new <a href="libraries/form_validation.html">Form Validation Class</a>.</li>
<li>新增<kbd>current_url()</kbd> and uri_segments() to <a href="helpers/url_helper.html">URL helper</a>.</li>
<li>Altered <kbd>auto_link()</kbd> in the <a href="helpers/url_helper.html">URL helper</a> so that email addresses with "+" included will be linked.</li>
<li>新增<kbd>meta()</kbd> function to <a href="helpers/html_helper.html">HTML helper</a>.</li>
<li>Improved accuracy of calculations in <a href="helpers/number_helper.html">Number helper</a>.</li>
<li>Removed 新增newlines ("\n") from most form and html helper functions.</li>
<li>Tightened up validation in the <a href="helpers/date_helper.html">Date helper</a> function <kbd>human_to_unix()</kbd>, and eliminated the POSIX regex.</li>
<li>Updated <a href="helpers/date_helper.html">Date helper</a> to match the world's current time zones and offsets.</li>
<li>Modified url_title() in the <a href="helpers/url_helper.html">URL helper</a> to remove characters and digits that are part of
character entities, to allow dashes, underscores, and periods regardless of the $separator, and to allow uppercase characters.</li>
<li>新增support for arbitrary attributes in anchor_popup() of the <a href="helpers/url_helper.html">URL helper</a>.</li>
</ul>
</li>
<li>Other Changes
<ul>
<li>新增<a href="./general/styleguide.html">PHP Style Guide</a> to docs.</li>
<li>新增sanitization in <kbd>xss_clean()</kbd> for a deprecated HTML tag that could be abused in user input in Internet Explorer.</li>
<li>新增a few openxml document mime types, and an additional mobile agent to mimes.php and user_agents.php respectively.</li>
<li>新增a file lock check during caching, before trying to write to the file.</li>
<li>Modified Cookie key cleaning to unset a few troublesome key names that can be present in certain environments, preventing CI from halting execution.</li>
<li>Changed the output of the profiler to use style attribute rather than clear, and 新增the id "codeigniter_profiler" to the container div.</li>
</ul>
</li>
</ul>
<h3>Bug fixes for 1.7.0</h3>
<ul>
<li>修正bug in <kbd>xss_clean()</kbd> that could remove some desirable tag attributes.</li>
<li>修正assorted user guide typos or examples (#4807, #4812, #4840, #4862, #4864, #4899, #4930, #5006, #5071, #5158, #5229, #5254, #5351).</li>
<li>修正an edit from 1.6.3 that made the $robots array in user_agents.php go poof.</li>
<li>修正a bug in the <a href="libraries/email.html">Email library</a> with quoted-printable encoding improperly encoding space and tab characters.</li>
<li>Modified XSS sanitization to no longer add semicolons after &[single letter], such as in M&M's, B&B, etc.</li>
<li>Modified XSS sanitization to no longer strip XHTML image tags of closing slashes.</li>
<li>修正a bug in the Session class when database sessions are used where upon session update all userdata would be errantly written to the session cookie.</li>
<li>修正a bug (#4536) in backups with the MySQL driver where some legacy code was causing certain characters to be double escaped.</li>
<li>修正a routing bug (#4661) that occurred when the default route pointed to a subfolder.</li>
<li>修正the spelling of "Dhaka" in the <kbd>timezone_menu()</kbd> function of the <a href="helpers/date_helper.html">Date helper.</a></li>
<li>修正the spelling of "raspberry" in config/smileys.php.</li>
<li>修正incorrect parenthesis in <kbd>form_open()</kbd> function (#5135).</li>
<li>修正a bug that was ignoring case when comparing controller methods (#4560).</li>
<li>修正a bug (#4615) that was not setting SMTP authorization settings when using the initialize function.</li>
<li>修正a bug in <kbd>highlight_code()</kbd> in the <a href="helpers/text_helper.html">Text helper</a> that would leave a stray </span> in certain cases.</li>
<li>修正Oracle bug (#3306) that was preventing multiple queries in one action.</li>
<li>修正ODBC bug that was ignoring connection params due to its use of a constructor.</li>
<li>修正a DB driver bug with num_rows() that would cause an error with the Oracle driver.</li>
<li>修正MS SQL bug (#4915). 新增brackets around database name in MS SQL driver when selecting the database, in the event that reserved characters are used in the name.</li>
<li>修正a DB caching bug (4718) in which the path was incorrect when no URI segments were present.</li>
<li>修正Image_lib class bug #4562. A path was not defined for NetPBM.</li>
<li>修正Image_lib class bug #4532. When cropping an image with identical height/width settings on output, a copy is made.</li>
<li>修正DB_driver bug (4900), in which a database error was not being logged correctly.</li>
<li>修正DB backup bug in which field names were not being escaped.</li>
<li>修正a DB Active Record caching bug in which multiple calls to cached data were not being honored.</li>
<li>修正a bug in the Session class that was disallowing slashes in the serialized array.</li>
<li>修正a Form Validation bug in which the "isset" error message was being trigged by the "required" rule.</li>
<li>修正a spelling error in a Loader error message.</li>
<li>修正a bug (5050) with IP validation with empty segments.</li>
<li>修正a bug in which the parser was being greedy if multiple identical sets of tags were encountered.</li>
</ul>
<h2>版本 1.6.3</h2>
<p>發佈日期: 2008年六月26日<br />
Hg 標籤: v1.6.3</p>
<p>版本 1.6.3 is a security and maintenance release and is recommended for all users.</p>
<ul>
<li>Database
<ul>
<li>Modified MySQL/MySQLi Forge class to give explicit names to keys</li>
<li>新增ability to set multiple column non-primary keys to the <a href="database/forge.html">Forge class</a></li>
<li>新增ability to set additional database config values in <a href="database/connecting.html">DSN connections</a> via the query string.</li>
</ul>
</li>
<li>Libraries
<ul>
<li>Set the mime type check in the <a href="libraries/file_uploading.html">Upload class</a> to reference the global mimes variable.</li>
<li>新增support for query strings to the <a href="libraries/pagination.html">Pagination class</a>, automatically detected or explicitly declared.</li>
<li>新增<kbd>get_post()</kbd> to the <a href="libraries/input.html">Input class</a>.</li>
<li>Documented <kbd>get()</kbd> in the <a href="libraries/input.html">Input class</a>.</li>
<li>新增the ability to automatically output language items as form labels in the <a href="libraries/language.html">Language class</a>.</li>
</ul>
</li>
<li>Helpers
<ul>
<li>新增a <a href="helpers/language_helper.html">Language helper</a>.</li>
<li>新增a <a href="helpers/number_helper.html">Number helper</a>.</li>
<li><a href="helpers/form_helper.html">Form helper</a> refactored to allow <kbd>form_open()</kbd> and <kbd>form_fieldset()</kbd> to accept arrays or strings as arguments.</li>
</ul>
</li>
<li>Other changes
<ul>
<li>Improved security in <kbd>xss_clean()</kbd>.</li>
<li>Removed an unused Router reference in <kbd>_display_cache()</kbd>.</li>
<li>新增ability to <a href="libraries/input.html">use xss_clean() to test images</a> for XSS, useful for upload security.</li>
<li>Considerably expanded list of mobile user-agents in config/user_agents.php.</li>
<li>Charset information in the userguide has been moved above title for internationalization purposes (#4614).</li>
<li>新增 "Using Associative Arrays In a Request Parameter" example to the <a href="libraries/xmlrpc.html">XMLRPC userguide page</a>.</li>
<li>Removed maxlength and size as automatically 新增attributes of form_input() in the <a href="helpers/form_helper.html">form helper</a>.</li>
<li>Documented the language file use of <kbd>byte_format()</kbd> in the <a href="helpers/number_helper.html">number helper</a>.</li>
</ul>
</li>
</ul>
<h3>Bug fixes for 1.6.3</h3>
<ul>
<li>新增a language key for valid_emails in validation_lang.php.</li>
<li>Amended fixes for bug (#3419) with parsing DSN database connections.</li>
<li>Moved the <kbd>_has_operators()</kbd> function (#4535) into DB_driver from DB_active_rec.</li>
<li>修正a syntax error in upload_lang.php.</li>
<li>修正a bug (#4542) with a regular expression in the Image library.</li>
<li>修正a bug (#4561) where <kbd>orhaving()</kbd> wasn't properly passing values.</li>
<li>Removed some unused variables from the code (#4563).</li>
<li>修正a bug where <kbd>having()</kbd> was not adding an = into the statement (#4568).</li>
<li>修正assorted user guide typos or examples (#4574, #4706).</li>
<li>新增quoted-printable headers to Email class when the multi-part override is used.</li>
<li>修正a double opening <p> tag in the index pages of each system directory.</li>
</ul>
<h2>版本 1.6.2</h2>
<p>發佈日期: 2008年3月13日<br />
Hg 標籤: 1.6.2</p>
<ul>
<li>Active Record
<ul>
<li>新增the ability to prevent escaping in <kbd>having()</kbd> clauses.</li>
<li>新增<kbd>rename_table()</kbd> into <a href="./database/forge.html">DBForge</a>.</li>
<li>修正a bug that wasn't allowing escaping to be turned off if the value of a query was NULL.</li>
<li>DB Forge is now assigned to any models that exist after loading (#3457).</li>
</ul>
</li>
<li>Database
<ul>
<li>新增<a href="./database/transactions.html">Strict Mode</a> to database transactions.</li>
<li>Escape behaviour in where() clauses has changed; values in those with the "FALSE" argument are no longer escaped (ie: quoted).</li>
</ul>
</li>
<li>Config
<ul>
<li>新增 'application/vnd.ms-powerpoint' to list of mime types.</li>
<li>新增 'audio/mpg' to list of mime types.</li>
<li>新增new user-modifiable file constants.php containing file mode and fopen constants.</li>
<li>新增the ability to set CRLF settings via config in the <a href="libraries/email.html">Email</a> class.</li>
</ul>
</li>
<li>Libraries
<ul>
<li>新增increased security for filename handling in the Upload library.</li>
<li>新增increased security for sessions for client-side data tampering.</li>
<li>The MySQLi forge class is now in sync with MySQL forge. </li>
<li>新增the ability to set CRLF settings via config in the <a href="libraries/email.html">Email</a> class.</li>
<li><a href="libraries/unit_testing.html">Unit Testing</a> results are now colour coded, and a change was made to the default template of results.</li>
<li>新增a valid_emails rule to the <a href="libraries/validation.html">Validation</a> class.</li>
<li>The <a href="libraries/zip.html">Zip class</a> now exits within <kbd>download()</kbd>.</li>
<li>The <a href="libraries/zip.html">Zip class</a> has undergone a substantial re-write for speed and clarity (thanks stanleyxu for the hard work and code contribution in bug report #3425!)</li>
</ul>
</li>
<li>Helpers
<ul>
<li>新增a <a href="helpers/compatibility_helper.html">Compatibility Helper</a> for using some common PHP 5 functions safely in applications that might run on PHP 4 servers (thanks Seppo for the hard work and code contribution!)</li>
<li>新增<kbd>form_button()</kbd> in the <a href="helpers/form_helper.html">Form helper</a>.</li>
<li>Changed the <kbd>radio()</kbd> and <kbd>checkbox()</kbd> functions to default to not checked by default.</li>
<li>新增the ability to include an optional HTTP Response Code in the <kbd>redirect()</kbd> function of the <a href="helpers/url_helper.html">URL Helper</a>.</li>
<li>Modified <kbd>img()</kbd> in the <a href="helpers/html_helper.html">HTML Helper</a> to remove an unneeded space (#4208).</li>
<li>Modified <kbd>anchor()</kbd> in the <a href="helpers/url_helper.html">URL helper</a> to no longer add a default title= attribute (#4209).</li>
<li>The <a href="helpers/download_helper.html">Download helper</a> now exits within <kbd>force_download()</kbd>.</li>
<li>新增<kbd>get_dir_file_info()</kbd>, <kbd>get_file_info()</kbd>, and <kbd>get_mime_by_extension()</kbd> to the <a href="helpers/file_helper.html">File Helper</a>.</li>
<li>新增<kbd>symbolic_permissions()</kbd> and <kbd>octal_permissions()</kbd> to the <a href='helpers/file_helper.html'>File helper</a>.</li>
</ul>
</li>
<li>Plugins
<ul>
<li>Modified captcha generation to first look for the function imagecreatetruecolor, and fallback to imagecreate if it isn't available (#4226).</li>
</ul>
</li>
<li>Other
Changes
<ul>
<li>新增ability for <a href="libraries/input.html">xss_clean()</a> to accept arrays.</li>
<li>Removed closing PHP tags from all PHP files to avoid accidental output and potential 'cannot modify headers' errors.</li>
<li>Removed "scripts" from the auto-load search path. Scripts were deprecated
in 版本 1.4.1 (September 21, 2006). If you still need to use them for legacy reasons, they must now be manually loaded in each Controller.</li>
<li>新增a <a href="general/reserved_names.html">Reserved Names</a> page to the userguide, and migrated reserved controller names into it.</li>
<li>新增a <a href="general/common_functions.html">Common Functions</a> page to the userguide for globally available functions.</li>
<li>Improved security and performance of xss_clean().</li>
</ul>
</li>
</ul>
<h3>Bugfixes for 1.6.2</h3>
<ul>
<li>修正a bug where SET queries were not being handled as "write" queries.</li>
<li>修正a bug (#3191) with ORIG_PATH_INFO URI parsing.</li>
<li>修正a bug in DB Forge, when inserting an id field (#3456).</li>
<li>修正a bug in the table library that could cause identically constructed rows to be dropped (#3459).</li>
<li>修正DB Driver and MySQLi result driver checking for resources instead of objects (#3461).</li>
<li>修正an AR_caching error where it wasn't tracking table aliases (#3463).</li>
<li>修正a bug in AR compiling, where select statements with arguments got incorrectly escaped (#3478).</li>
<li>修正an incorrect documentation of $this->load->language (#3520).</li>
<li>修正bugs (#3523, #4350) in get_filenames() with recursion and problems with Windows when $include_path is used.</li>
<li>修正a bug (#4153) in the XML-RPC class preventing dateTime.iso8601 from being used.</li>
<li>修正an AR bug with or_where_not_in() (#4171).</li>
<li>修正a bug with <a href="libraries/input.html">xss_clean()</a> that would add semicolons to GET URI variable strings.</li>
<li>修正a bug (#4206) in the Directory Helper where the directory resource was not being closed, and minor improvements.</li>
<li>修正a bug in the FTP library where delete_dir() was not working recursively (#4215).</li>
<li>修正a Validation bug when set_rules() is used with a non-array field name and rule (#4220).</li>
<li>修正a bug (#4223) where DB caching would not work for returned DB objects or multiple DB connections.</li>
<li>修正a bug in the Upload library that might output the same error twice (#4390).</li>
<li>修正an AR bug when joining with a table alias and table prefix (#4400).</li>
<li>修正a bug in the DB class testing the $params argument.</li>
<li>修正a bug in the Table library where the integer 0 in cell data would be displayed as a blank cell.</li>
<li>修正a bug in <kbd>link_tag()</kbd> of the <a href="helpers/url_helper.html">URL helper</a> where a key was passed instead of a value.</li>
<li>修正a bug in DB_result::row() that prevented it from returning individual fields with MySQL NULL values.</li>
<li>修正a bug where SMTP emails were not having dot transformation performed on lines that begin with a dot.</li>
<li>修正a bug in display_error() in the DB driver that was instantiating new Language and Exception objects, and not using the error heading.</li>
<li>修正a bug (#4413) where a URI containing slashes only e.g. 'http://example.com/index.php?//' would result in PHP errors</li>
<li>修正an array to string conversion error in the Validation library (#4425)</li>
<li>修正bug (#4451, #4299, #4339) where failed transactions will not rollback when debug mode is enabled.</li>
<li>修正a bug (#4506) with overlay_watermark() in the Image library preventing support for PNG-24s with alpha transparency</li>
<li>修正assorted user guide typos (#3453, #4364, #4379, #4399, #4408, #4412, #4448, #4488).</li>
</ul>
<h2>版本 1.6.1</h2>
<p>發佈日期: 2008年2月12日<br />
Hg 標籤: 1.6.1</p>
<ul>
<li>Active Record
<ul>
<li>新增<a href="./database/active_record.html#caching">Active Record Caching</a>.</li>
<li>Made Active Record fully database-prefix aware.</li>
</ul>
</li>
<li>Database drivers
<ul>
<li>新增support for setting client character set and collation for MySQLi.</li>
</ul>
</li>
<li>Core Changes
<ul>
<li>Modified <kbd>xss_clean()</kbd> to be more intelligent with its handling of URL encoded strings.</li>
<li>新增 $_SERVER, $_FILES, $_ENV, and $_SESSION to sanitization of globals.</li>
<li>新增a <a href="./helpers/path_helper.html">Path Helper</a>.</li>
<li>Simplified <kbd>_reindex_segments()</kbd> in the URI class.</li>
<li>Escaped the '-' in the default 'permitted_uri_chars' config item, to prevent errors if developers just try to add additional characters to the end of the default expression.</li>
<li>Modified method calling to controllers to show a 404 when a private or protected method is accessed via a URL.</li>
<li>Modified framework initiated 404s to log the controller and method for invalid requests.</li>
</ul>
</li>
<li>Helpers
<ul>
<li>Modified <kbd>get_filenames()</kbd> in the File Helper to return FALSE if the $source_dir is not readable.</li>
</ul>
</li>
</ul>
<h3>Bugfixes for 1.6.1</h3>
<ul>
<li>Deprecated is_numeric as a validation rule. Use of numeric and integer are preferred.</li>
<li>修正bug (#3379) in DBForge with SQLite for table creation.</li>
<li>Made Active Record fully database prefix aware (#3384).</li>
<li>修正a bug where DBForge was outputting invalid SQL in Postgres by adding brackets around the tables in FROM.</li>
<li>Changed the behaviour of Active Record's update() to make the WHERE clause optional (#3395).</li>
<li>修正a bug (#3396) where certain POST variables would cause a PHP warning.</li>
<li>修正a bug in query binding (#3402).</li>
<li>Changed order of SQL keywords in the Profiler $highlight array so OR would not be highlighted before ORDER BY.</li>
<li>修正a bug (#3404) where the MySQLi driver was testing if $this->conn_id was a resource instead of an object.</li>
<li>修正a bug (#3419) connecting to a database via a DSN string.</li>
<li>修正a bug (#3445) where the routed segment array was not re-indexed to begin with 1 when the default controller is used.</li>
<li>修正assorted user guide typos.</li>
</ul>
<h2>版本 1.6.0</h2>
<p>發佈日期: 2008年1月30日</p>
<ul>
<li>DBForge
<ul>
<li>新增<a href="./database/forge.html">DBForge</a> to the database tools.</li>
<li>Moved <kbd>create_database()</kbd> and <kbd>drop_database()</kbd> into <a href="./database/forge.html">DBForge</a>.</li>