678 lines
22 KiB
PHP
Executable File
678 lines
22 KiB
PHP
Executable File
<?php
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/**
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* ECSHOP 字符集转换类
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* ============================================================================
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* * 版权所有 2005-2012 上海商派网络科技有限公司，并保留所有权利。
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* 网站地址: http://www.ecshop.com；
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* ----------------------------------------------------------------------------
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* 这不是一个自由软件！您只能在不用于商业目的的前提下对程序代码进行修改和
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* 使用；不允许对程序代码以任何形式任何目的的再发布。
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* ============================================================================
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* @author: 未知
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* @version: v2.2
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* ---------------------------------------------
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* $Id: cls_iconv.php 17217 2011-01-19 06:29:08Z liubo $
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*/
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if (!defined('IN_ECS'))
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{
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die('Hacking attempt');
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}
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class Chinese
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{
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/**
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* 存放 GB <-> UNICODE 对照表的内容
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* @变量类型
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* @访问 内部
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*/
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var $unicode_table = array();
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/**
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* 访问中文繁简互换表的文件指针
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*
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* @变量类型 对象
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* @访问 内部
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*/
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var $ctf;
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/**
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* 等待转换的字符串
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* @变量类型
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* @访问 内部
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*/
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var $SourceText = '';
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/**
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* Chinese 的运行配置
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*
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* @变量类型 数组
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* @访问 公开
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*/
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var $config = array(
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'codetable_dir' => '', // 存放各种语言互换表的目录
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'source_lang' => '', // 字符的原编码
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'target_lang' => '', // 转换后的编码
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'GBtoBIG5_table' => 'gb-big5.table', // 简体中文转换为繁体中文的对照表
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'BIG5toGB_table' => 'big5-gb.table', // 繁体中文转换为简体中文的对照表
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'GBtoUTF8_table' => 'gb_utf8.php', // 简体中文转换为UTF-8的对照表
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'BIG5toUTF8_table' => 'big5_utf8.php' // 繁体中文转换为UTF-8的对照表
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);
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var $iconv_enabled = false; // 是否存在 ICONV 模块，默认为否
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var $mbstring_enabled = false; // 是否存在 MBSTRING 模块，默认为否
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/**
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* Chinese 的悉构函数
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*
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* 详细说明
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* @形参 字符串 $source_lang 为需要转换的字符串的原编码
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* 字符串 $target_lang 为转换的目标编码
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* 字符串 $SourceText 为等待转换的字符串
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* @访问 公开
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* @返回值 无
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* @throws
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*/
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function Chinese($dir = './')
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{
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$this->config['codetable_dir'] = $dir . "includes/codetable/";
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if (function_exists('iconv'))
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{
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$this->iconv_enabled = true;
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}
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if (PHP_VERSION >= '5.0' && function_exists('mb_convert_encoding') && function_exists('mb_list_encodings'))
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{
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$encodings = mb_list_encodings();
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if (in_array('UTF-8', $encodings) == true && in_array('BIG-5', $encodings) == true && in_array('CP936', $encodings) == true) // CP936 就是 GBK 字符集的别名
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{
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$this->mbstring_enabled = true;
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}
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}
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}
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function Convert($source_lang, $target_lang, $source_string = '')
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{
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/* 如果字符串为空或者字符串不需要转换，直接返回 */
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if ($source_string == '' || preg_match("/[\x80-\xFF]+/", $source_string) == 0)
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{
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return $source_string;
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}
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if ($source_lang)
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{
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$this->config['source_lang'] = $this->_lang($source_lang);
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}
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if ($target_lang)
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{
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$this->config['target_lang'] = $this->_lang($target_lang);
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}
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/* 如果编码相同，直接返回 */
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if ($this->config['source_lang'] == $this->config['target_lang'])
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{
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return $source_string;
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}
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$this->SourceText = $source_string;
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if (($this->iconv_enabled || $this->mbstring_enabled) && !($this->config['source_lang'] == 'GBK' && $this->config['target_lang'] == 'BIG-5'))
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{
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if ($this->config['target_lang'] != 'UNICODE')
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{
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$string = $this->_convert_iconv_mbstring($this->SourceText, $this->config['target_lang'], $this->config['source_lang']);
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/* 如果正确转换 */
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if ($string)
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{
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return $string;
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}
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}
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else
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{
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$string = '';
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$text = $SourceText;
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while ($text)
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{
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if (ord(substr($text, 0, 1)) > 127)
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{
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if ($this->config['source_lang'] != 'UTF-8')
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{
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$char = $this->_convert_iconv_mbstring(substr($text, 0, 2), 'UTF-8', $this->config['source_lang']);
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}
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else
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{
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$char = substr($text, 0, 3);
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}
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/* 如果转换出错 */
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if ($char == '')
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{
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$string = '';
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break;
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}
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switch (strlen($char))
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{
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case 1:
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$uchar = ord($char);
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break;
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case 2:
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$uchar = (ord($char[0]) & 0x3f) << 6;
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$uchar += ord($char[1]) & 0x3f;
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break;
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case 3:
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$uchar = (ord($char[0]) & 0x1f) << 12;
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$uchar += (ord($char[1]) & 0x3f) << 6;
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$uchar += ord($char[2]) & 0x3f;
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break;
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case 4:
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$uchar = (ord($char[0]) & 0x0f) << 18;
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$uchar += (ord($char[1]) & 0x3f) << 12;
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$uchar += (ord($char[2]) & 0x3f) << 6;
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$uchar += ord($char[3]) & 0x3f;
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break;
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}
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$string .= '&#x' . dechex($uchar) . ';';
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if ($this->config['source_lang'] != 'UTF-8')
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{
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$text = substr($text, 2);
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}
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else
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{
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$text = substr($text, 3);
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}
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}
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else
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{
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$string .= substr($text, 0, 1);
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$text = substr($text, 1);
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}
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}
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/* 如果正确转换 */
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if ($string)
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{
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return $string;
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}
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}
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}
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$this->OpenTable();
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// 判断是否为中文繁、简转换
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if (($this->config['source_lang'] == 'GBK' || $this->config['source_lang'] == 'BIG-5') && ($this->config['target_lang'] == 'GBK' || $this->config['target_lang'] == 'BIG-5'))
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{
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return $this->GBtoBIG5();
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}
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// 判断是否为简体、繁体中文与UTF8转换
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if (($this->config['source_lang'] == 'GBK' || $this->config['source_lang'] == 'BIG-5' || $this->config['source_lang'] == 'UTF-8') && ($this->config['target_lang'] == 'UTF-8' || $this->config['target_lang'] == 'GBK' || $this->config['target_lang'] == 'BIG-5'))
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{
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return $this->CHStoUTF8();
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}
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// 判断是否为简体、繁体中文与UNICODE转换
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if (($this->config['source_lang'] == 'GBK' || $this->config['source_lang'] == 'BIG-5') && $this->config['target_lang'] == 'UNICODE')
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{
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return $this->CHStoUNICODE();
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}
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}
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function _lang($lang)
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{
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$lang = strtoupper($lang);
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if (substr($lang, 0, 2) == 'GB')
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{
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return 'GBK';
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}
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else
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{
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switch(substr($lang, 0, 3))
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{
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case 'BIG':
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return 'BIG-5';
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case 'UTF':
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return 'UTF-8';
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case 'UNI':
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return 'UNICODE';
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default:
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return '';
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}
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}
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}
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function _convert_iconv_mbstring($string, $target_lang, $source_lang)
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{
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if ($this->iconv_enabled)
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{
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$return_string = @iconv($source_lang, $target_lang, $string);
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if ($return_string !== false)
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{
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return $return_string;
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}
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}
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if ($this->mbstring_enabled)
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{
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if ($source_lang == 'GBK')
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{
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$source_lang = 'CP936';
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}
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if ($target_lang == 'GBK')
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{
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$target_lang = 'CP936';
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}
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$return_string = @mb_convert_encoding($string, $target_lang, $source_lang);
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if ($return_string !== false)
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{
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return $return_string;
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}
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else
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{
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return false;
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}
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}
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}
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/**
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* 将 16 进制转换为 2 进制字符
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*
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* 详细说明
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* @形参 $hexdata 为16进制的编码
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* @访问 内部
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* @返回 字符串
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* @throws
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*/
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function _hex2bin($hexdata)
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{
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$bindata = '';
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for ($i = 0, $count = strlen($hexdata); $i < $count; $i += 2)
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{
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$bindata .= chr(hexdec($hexdata{$i} . $hexdata{$i + 1}));
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}
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return $bindata;
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}
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/**
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* 打开对照表
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*
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* 详细说明
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* @形参
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* @访问 内部
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* @返回 无
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* @throws
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*/
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function OpenTable()
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{
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static $gb_utf8_table = NULL;
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static $gb_unicode_table = NULL;
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static $utf8_gb_table = NULL;
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static $big5_utf8_table = NULL;
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static $big5_unicode_table = NULL;
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static $utf8_big5_table = NULL;
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// 假如原编码为简体中文的话
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if ($this->config['source_lang'] == 'GBK')
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{
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// 假如转换目标编码为繁体中文的话
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if ($this->config['target_lang'] == 'BIG-5')
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{
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$this->ctf = @fopen($this->config['codetable_dir'] . $this->config['GBtoBIG5_table'], 'rb');
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if (is_null($this->ctf))
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{
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echo '打开打开转换表文件失败！';
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exit;
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}
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}
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// 假如转换目标编码为 UTF8 的话
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if ($this->config['target_lang'] == 'UTF-8')
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{
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if ($gb_utf8_table === NULL)
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{
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require_once($this->config['codetable_dir'] . $this->config['GBtoUTF8_table']);
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}
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$this->unicode_table = $gb_utf8_table;
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}
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// 假如转换目标编码为 UNICODE 的话
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if ($this->config['target_lang'] == 'UNICODE')
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{
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if ($gb_unicode_table === NULL)
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{
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if (isset($gb_utf8_table) === false)
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{
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require_once($this->config['codetable_dir'] . $this->config['GBtoUTF8_table']);
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}
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foreach ($gb_utf8_table AS $key => $value)
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{
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$gb_unicode_table[$key] = substr($value, 2);
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}
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}
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$this->unicode_table = $gb_unicode_table;
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}
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}
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// 假如原编码为繁体中文的话
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if ($this->config['source_lang'] == 'BIG-5')
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{
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// 假如转换目标编码为简体中文的话
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if ($this->config['target_lang'] == 'GBK')
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{
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$this->ctf = @fopen($this->config['codetable_dir'] . $this->config['BIG5toGB_table'], 'rb');
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if (is_null($this->ctf))
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{
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echo '打开打开转换表文件失败！';
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exit;
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}
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}
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// 假如转换目标编码为 UTF8 的话
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if ($this->config['target_lang'] == 'UTF-8')
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{
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if ($big5_utf8_table === NULL)
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{
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require_once($this->config['codetable_dir'] . $this->config['BIG5toUTF8_table']);
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}
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$this->unicode_table = $big5_utf8_table;
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}
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// 假如转换目标编码为 UNICODE 的话
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if ($this->config['target_lang'] == 'UNICODE')
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{
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if ($big5_unicode_table === NULL)
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{
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if (isset($big5_utf8_table) === false)
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{
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require_once($this->config['codetable_dir'] . $this->config['BIG5toUTF8_table']);
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}
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foreach ($big5_utf8_table AS $key => $value)
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{
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$big5_unicode_table[$key] = substr($value, 2);
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}
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}
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$this->unicode_table = $big5_unicode_table;
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}
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}
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// 假如原编码为 UTF8 的话
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if ($this->config['source_lang'] == 'UTF-8')
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{
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// 假如转换目标编码为 GBK 的话
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if ($this->config['target_lang'] == 'GBK')
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{
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if ($utf8_gb_table === NULL)
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{
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if (isset($gb_utf8_table) === false)
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{
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require_once($this->config['codetable_dir'] . $this->config['GBtoUTF8_table']);
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}
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foreach ($gb_utf8_table AS $key => $value)
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{
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$utf8_gb_table[hexdec($value)] = '0x' . dechex($key);
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}
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}
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$this->unicode_table = $utf8_gb_table;
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}
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// 假如转换目标编码为 BIG5 的话
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if ($this->config['target_lang'] == 'BIG-5')
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{
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if ($utf8_big5_table === NULL)
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{
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if (isset($big5_utf8_table) === false)
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{
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require_once($this->config['codetable_dir'] . $this->config['BIG5toUTF8_table']);
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}
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foreach ($big5_utf8_table AS $key => $value)
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{
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$utf8_big5_table[hexdec($value)] = '0x' . dechex($key);
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}
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}
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$this->unicode_table = $utf8_big5_table;
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}
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}
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}
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/**
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* 将简体、繁体中文的 UNICODE 编码转换为 UTF8 字符
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*
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* 详细说明
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* @形参 数字 $c 简体中文汉字的UNICODE编码的10进制
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* @访问 内部
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* @返回 字符串
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* @throws
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*/
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function CHSUtoUTF8($c)
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{
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$str='';
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if ($c < 0x80)
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{
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$str .= $c;
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}
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elseif ($c < 0x800)
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{
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$str .= (0xC0 | $c >> 6);
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$str .= (0x80 | $c & 0x3F);
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}
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elseif ($c < 0x10000)
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{
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$str .= (0xE0 | $c >> 12);
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$str .= (0x80 | $c >> 6 & 0x3F);
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$str .= (0x80 | $c & 0x3F);
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}
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elseif ($c < 0x200000)
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{
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$str .= (0xF0 | $c >> 18);
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$str .= (0x80 | $c >> 12 & 0x3F);
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$str .= (0x80 | $c >> 6 & 0x3F);
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$str .= (0x80 | $c & 0x3F);
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}
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return $str;
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}
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/**
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* 简体、繁体中文 <-> UTF8 互相转换的函数
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*
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* 详细说明
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||
* @形参
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* @访问 内部
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||
* @返回 字符串
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* @throws
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*/
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function CHStoUTF8()
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{
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if ($this->config['source_lang'] == 'BIG-5' || $this->config['source_lang'] == 'GBK')
|
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{
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$ret = '';
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while ($this->SourceText)
|
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{
|
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if (ord($this->SourceText{0}) > 127)
|
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{
|
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if ($this->config['source_lang'] == 'BIG-5')
|
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{
|
||
$utf8 = $this->CHSUtoUTF8(hexdec(@$this->unicode_table[hexdec(bin2hex($this->SourceText{0} . $this->SourceText{1}))]));
|
||
}
|
||
if ($this->config['source_lang'] == 'GBK')
|
||
{
|
||
$utf8 = $this->CHSUtoUTF8(hexdec(@$this->unicode_table[hexdec(bin2hex($this->SourceText{0} . $this->SourceText{1})) - 0x8080]));
|
||
}
|
||
for ($i = 0, $count = strlen($utf8); $i < $count; $i += 3)
|
||
{
|
||
$ret .= chr(substr($utf8, $i, 3));
|
||
}
|
||
|
||
$this->SourceText = substr($this->SourceText, 2, strlen($this->SourceText));
|
||
}
|
||
else
|
||
{
|
||
$ret .= $this->SourceText{0};
|
||
$this->SourceText = substr($this->SourceText, 1, strlen($this->SourceText));
|
||
}
|
||
}
|
||
$this->unicode_table = array();
|
||
$this->SourceText = '';
|
||
|
||
return $ret;
|
||
}
|
||
|
||
if ($this->config['source_lang'] == 'UTF-8')
|
||
{
|
||
$i = 0;
|
||
$out = '';
|
||
$len = strlen($this->SourceText);
|
||
while ($i < $len)
|
||
{
|
||
$c = ord($this->SourceText{$i++});
|
||
switch($c >> 4)
|
||
{
|
||
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
|
||
// 0xxxxxxx
|
||
$out .= $this->SourceText{$i - 1};
|
||
break;
|
||
case 12: case 13:
|
||
// 110x xxxx 10xx xxxx
|
||
$char2 = ord($this->SourceText{$i++});
|
||
$char3 = @$this->unicode_table[(($c & 0x1F) << 6) | ($char2 & 0x3F)];
|
||
|
||
if ($this->config['target_lang'] == 'GBK')
|
||
{
|
||
$out .= $this->_hex2bin(dechex($char3 + 0x8080));
|
||
}
|
||
elseif ($this->config['target_lang'] == 'BIG-5')
|
||
{
|
||
$out .= $this->_hex2bin(dechex($char3 + 0x0000));
|
||
}
|
||
break;
|
||
case 14:
|
||
// 1110 xxxx 10xx xxxx 10xx xxxx
|
||
$char2 = ord($this->SourceText{$i++});
|
||
$char3 = ord($this->SourceText{$i++});
|
||
$char4 = @$this->unicode_table[(($c & 0x0F) << 12) | (($char2 & 0x3F) << 6) | (($char3 & 0x3F) << 0)];
|
||
|
||
if ($this->config['target_lang'] == 'GBK')
|
||
{
|
||
$out .= $this->_hex2bin(dechex($char4 + 0x8080));
|
||
} elseif ($this->config['target_lang'] == 'BIG-5')
|
||
{
|
||
$out .= $this->_hex2bin(dechex($char4 + 0x0000));
|
||
}
|
||
|
||
break;
|
||
}
|
||
}
|
||
|
||
// 返回结果
|
||
return $out;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 简体、繁体中文转换为 UNICODE编码
|
||
*
|
||
* 详细说明
|
||
* @形参
|
||
* @访问 内部
|
||
* @返回 字符串
|
||
* @throws
|
||
*/
|
||
function CHStoUNICODE()
|
||
{
|
||
$utf = '';
|
||
|
||
while ($this->SourceText)
|
||
{
|
||
if (ord($this->SourceText{0}) > 127)
|
||
{
|
||
if ($this->config['source_lang'] == 'GBK')
|
||
{
|
||
$utf .= '&#x' . $this->unicode_table[hexdec(bin2hex($this->SourceText{0} . $this->SourceText{1})) - 0x8080] . ';';
|
||
}
|
||
elseif ($this->config['source_lang'] == 'BIG-5')
|
||
{
|
||
$utf .= '&#x' . $this->unicode_table[hexdec(bin2hex($this->SourceText{0} . $this->SourceText{1}))] . ';';
|
||
}
|
||
|
||
$this->SourceText = substr($this->SourceText, 2, strlen($this->SourceText));
|
||
}
|
||
else
|
||
{
|
||
$utf .= $this->SourceText{0};
|
||
$this->SourceText = substr($this->SourceText, 1, strlen($this->SourceText));
|
||
}
|
||
}
|
||
|
||
return $utf;
|
||
}
|
||
|
||
/**
|
||
* 简体中文 <-> 繁体中文 互相转换的函数
|
||
*
|
||
* 详细说明
|
||
* @访问 内部
|
||
* @返回值 经过编码的utf8字符
|
||
* @throws
|
||
*/
|
||
function GBtoBIG5()
|
||
{
|
||
// 获取等待转换的字符串的总长度
|
||
$max = strlen($this->SourceText) - 1;
|
||
|
||
for ($i = 0; $i < $max; $i++)
|
||
{
|
||
$h = ord($this->SourceText{$i});
|
||
if ($h >= 160)
|
||
{
|
||
$l = ord($this->SourceText{$i + 1});
|
||
|
||
if ($h == 161 && $l == 64)
|
||
{
|
||
$gb = ' ';
|
||
}
|
||
else
|
||
{
|
||
fseek($this->ctf, ($h - 160) * 510 + ($l - 1) * 2);
|
||
$gb = fread($this->ctf, 2);
|
||
}
|
||
|
||
$this->SourceText{$i} = $gb{0};
|
||
$this->SourceText{$i + 1} = $gb{1};
|
||
|
||
$i++;
|
||
}
|
||
}
|
||
fclose($this->ctf);
|
||
|
||
// 将转换后的结果赋予 $result;
|
||
$result = $this->SourceText;
|
||
|
||
// 清空 $thisSourceText
|
||
$this->SourceText = '';
|
||
|
||
// 返回转换结果
|
||
return $result;
|
||
}
|
||
}
|
||
|
||
?>
|