www.gusucode.com > Ectouch手机端网购商城系统PHP版源码程序 > ectouch/include/library/EcsIconv.class.php
<?php
/* 访问控制 */
defined('IN_ECTOUCH') or die('Deny Access');
/**
* ECSHOP 字符集转换类
*/
class EcsIconv {
/**
* 存放 GB <-> UNICODE 对照表的内容
* @变量类型
* @访问 内部
*/
var $unicode_table = array();
/**
* 访问中文繁简互换表的文件指针
*
* @变量类型 对象
* @访问 内部
*/
var $ctf;
/**
* 等待转换的字符串
* @变量类型
* @访问 内部
*/
var $SourceText = '';
/**
* Chinese 的运行配置
*
* @变量类型 数组
* @访问 公开
*/
var $config = array(
'codetable_dir' => '', // 存放各种语言互换表的目录
'source_lang' => '', // 字符的原编码
'target_lang' => '', // 转换后的编码
'GBtoBIG5_table' => 'gb-big5.table', // 简体中文转换为繁体中文的对照表
'BIG5toGB_table' => 'big5-gb.table', // 繁体中文转换为简体中文的对照表
'GBtoUTF8_table' => 'gb_utf8.php', // 简体中文转换为UTF-8的对照表
'BIG5toUTF8_table' => 'big5_utf8.php' // 繁体中文转换为UTF-8的对照表
);
var $iconv_enabled = false; // 是否存在 ICONV 模块，默认为否
var $mbstring_enabled = false; // 是否存在 MBSTRING 模块，默认为否
/**
* Chinese 的悉构函数
*
* 详细说明
* @形参 字符串 $source_lang 为需要转换的字符串的原编码
* 字符串 $target_lang 为转换的目标编码
* 字符串 $SourceText 为等待转换的字符串
* @访问 公开
* @返回值 无
* @throws
*/
function __construct($dir = './') {
$this->config['codetable_dir'] = $dir . "includes/codetable/";
if (function_exists('iconv')) {
$this->iconv_enabled = true;
}
if (PHP_VERSION >= '5.0' && function_exists('mb_convert_encoding') && function_exists('mb_list_encodings')) {
$encodings = mb_list_encodings();
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
$this->mbstring_enabled = true;
}
}
}
function Convert($source_lang, $target_lang, $source_string = '') {
/* 如果字符串为空或者字符串不需要转换，直接返回 */
if ($source_string == '' || preg_match("/[\x80-\xFF]+/", $source_string) == 0) {
return $source_string;
}
if ($source_lang) {
$this->config['source_lang'] = $this->_lang($source_lang);
}
if ($target_lang) {
$this->config['target_lang'] = $this->_lang($target_lang);
}
/* 如果编码相同，直接返回 */
if ($this->config['source_lang'] == $this->config['target_lang']) {
return $source_string;
}
$this->SourceText = $source_string;
if (($this->iconv_enabled || $this->mbstring_enabled) && !($this->config['source_lang'] == 'GBK' && $this->config['target_lang'] == 'BIG-5')) {
if ($this->config['target_lang'] != 'UNICODE') {
$string = $this->_convert_iconv_mbstring($this->SourceText, $this->config['target_lang'], $this->config['source_lang']);
/* 如果正确转换 */
if ($string) {
return $string;
}
} else {
$string = '';
$text = $SourceText;
while ($text) {
if (ord(substr($text, 0, 1)) > 127) {
if ($this->config['source_lang'] != 'UTF-8') {
$char = $this->_convert_iconv_mbstring(substr($text, 0, 2), 'UTF-8', $this->config['source_lang']);
} else {
$char = substr($text, 0, 3);
}
/* 如果转换出错 */
if ($char == '') {
$string = '';
break;
}
switch (strlen($char)) {
case 1:
$uchar = ord($char);
break;
case 2:
$uchar = (ord($char[0]) & 0x3f) << 6;
$uchar += ord($char[1]) & 0x3f;
break;
case 3:
$uchar = (ord($char[0]) & 0x1f) << 12;
$uchar += (ord($char[1]) & 0x3f) << 6;
$uchar += ord($char[2]) & 0x3f;
break;
case 4:
$uchar = (ord($char[0]) & 0x0f) << 18;
$uchar += (ord($char[1]) & 0x3f) << 12;
$uchar += (ord($char[2]) & 0x3f) << 6;
$uchar += ord($char[3]) & 0x3f;
break;
}
$string .= '&#x' . dechex($uchar) . ';';
if ($this->config['source_lang'] != 'UTF-8') {
$text = substr($text, 2);
} else {
$text = substr($text, 3);
}
} else {
$string .= substr($text, 0, 1);
$text = substr($text, 1);
}
}
/* 如果正确转换 */
if ($string) {
return $string;
}
}
}
$this->OpenTable();
// 判断是否为中文繁、简转换
if (($this->config['source_lang'] == 'GBK' || $this->config['source_lang'] == 'BIG-5') && ($this->config['target_lang'] == 'GBK' || $this->config['target_lang'] == 'BIG-5')) {
return $this->GBtoBIG5();
}
// 判断是否为简体、繁体中文与UTF8转换
if (($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')) {
return $this->CHStoUTF8();
}
// 判断是否为简体、繁体中文与UNICODE转换
if (($this->config['source_lang'] == 'GBK' || $this->config['source_lang'] == 'BIG-5') && $this->config['target_lang'] == 'UNICODE') {
return $this->CHStoUNICODE();
}
}
function _lang($lang) {
$lang = strtoupper($lang);
if (substr($lang, 0, 2) == 'GB') {
return 'GBK';
} else {
switch (substr($lang, 0, 3)) {
case 'BIG':
return 'BIG-5';
case 'UTF':
return 'UTF-8';
case 'UNI':
return 'UNICODE';
default:
return '';
}
}
}
function _convert_iconv_mbstring($string, $target_lang, $source_lang) {
if ($this->iconv_enabled) {
$return_string = @iconv($source_lang, $target_lang, $string);
if ($return_string !== false) {
return $return_string;
}
}
if ($this->mbstring_enabled) {
if ($source_lang == 'GBK') {
$source_lang = 'CP936';
}
if ($target_lang == 'GBK') {
$target_lang = 'CP936';
}
$return_string = @mb_convert_encoding($string, $target_lang, $source_lang);
if ($return_string !== false) {
return $return_string;
} else {
return false;
}
}
}
/**
* 将 16 进制转换为 2 进制字符
*
* 详细说明
* @形参 $hexdata 为16进制的编码
* @访问 内部
* @返回 字符串
* @throws
*/
function _hex2bin($hexdata) {
$bindata = '';
for ($i = 0, $count = strlen($hexdata); $i < $count; $i += 2) {
$bindata .= chr(hexdec($hexdata{$i} . $hexdata{$i + 1}));
}
return $bindata;
}
/**
* 打开对照表
*
* 详细说明
* @形参
* @访问 内部
* @返回 无
* @throws
*/
function OpenTable() {
static $gb_utf8_table = NULL;
static $gb_unicode_table = NULL;
static $utf8_gb_table = NULL;
static $big5_utf8_table = NULL;
static $big5_unicode_table = NULL;
static $utf8_big5_table = NULL;
// 假如原编码为简体中文的话
if ($this->config['source_lang'] == 'GBK') {
// 假如转换目标编码为繁体中文的话
if ($this->config['target_lang'] == 'BIG-5') {
$this->ctf = @fopen($this->config['codetable_dir'] . $this->config['GBtoBIG5_table'], 'rb');
if (is_null($this->ctf)) {
echo '打开打开转换表文件失败！';
exit;
}
}
// 假如转换目标编码为 UTF8 的话
if ($this->config['target_lang'] == 'UTF-8') {
if ($gb_utf8_table === NULL) {
require_once($this->config['codetable_dir'] . $this->config['GBtoUTF8_table']);
}
$this->unicode_table = $gb_utf8_table;
}
// 假如转换目标编码为 UNICODE 的话
if ($this->config['target_lang'] == 'UNICODE') {
if ($gb_unicode_table === NULL) {
if (isset($gb_utf8_table) === false) {
require_once($this->config['codetable_dir'] . $this->config['GBtoUTF8_table']);
}
foreach ($gb_utf8_table AS $key => $value) {
$gb_unicode_table[$key] = substr($value, 2);
}
}
$this->unicode_table = $gb_unicode_table;
}
}
// 假如原编码为繁体中文的话
if ($this->config['source_lang'] == 'BIG-5') {
// 假如转换目标编码为简体中文的话
if ($this->config['target_lang'] == 'GBK') {
$this->ctf = @fopen($this->config['codetable_dir'] . $this->config['BIG5toGB_table'], 'rb');
if (is_null($this->ctf)) {
echo '打开打开转换表文件失败！';
exit;
}
}
// 假如转换目标编码为 UTF8 的话
if ($this->config['target_lang'] == 'UTF-8') {
if ($big5_utf8_table === NULL) {
require_once($this->config['codetable_dir'] . $this->config['BIG5toUTF8_table']);
}
$this->unicode_table = $big5_utf8_table;
}
// 假如转换目标编码为 UNICODE 的话
if ($this->config['target_lang'] == 'UNICODE') {
if ($big5_unicode_table === NULL) {
if (isset($big5_utf8_table) === false) {
require_once($this->config['codetable_dir'] . $this->config['BIG5toUTF8_table']);
}
foreach ($big5_utf8_table AS $key => $value) {
$big5_unicode_table[$key] = substr($value, 2);
}
}
$this->unicode_table = $big5_unicode_table;
}
}
// 假如原编码为 UTF8 的话
if ($this->config['source_lang'] == 'UTF-8') {
// 假如转换目标编码为 GBK 的话
if ($this->config['target_lang'] == 'GBK') {
if ($utf8_gb_table === NULL) {
if (isset($gb_utf8_table) === false) {
require_once($this->config['codetable_dir'] . $this->config['GBtoUTF8_table']);
}
foreach ($gb_utf8_table AS $key => $value) {
$utf8_gb_table[hexdec($value)] = '0x' . dechex($key);
}
}
$this->unicode_table = $utf8_gb_table;
}
// 假如转换目标编码为 BIG5 的话
if ($this->config['target_lang'] == 'BIG-5') {
if ($utf8_big5_table === NULL) {
if (isset($big5_utf8_table) === false) {
require_once($this->config['codetable_dir'] . $this->config['BIG5toUTF8_table']);
}
foreach ($big5_utf8_table AS $key => $value) {
$utf8_big5_table[hexdec($value)] = '0x' . dechex($key);
}
}
$this->unicode_table = $utf8_big5_table;
}
}
}
/**
* 将简体、繁体中文的 UNICODE 编码转换为 UTF8 字符
*
* 详细说明
* @形参 数字 $c 简体中文汉字的UNICODE编码的10进制
* @访问 内部
* @返回 字符串
* @throws
*/
function CHSUtoUTF8($c) {
$str = '';
if ($c < 0x80) {
$str .= $c;
} elseif ($c < 0x800) {
$str .= (0xC0 | $c >> 6);
$str .= (0x80 | $c & 0x3F);
} elseif ($c < 0x10000) {
$str .= (0xE0 | $c >> 12);
$str .= (0x80 | $c >> 6 & 0x3F);
$str .= (0x80 | $c & 0x3F);
} elseif ($c < 0x200000) {
$str .= (0xF0 | $c >> 18);
$str .= (0x80 | $c >> 12 & 0x3F);
$str .= (0x80 | $c >> 6 & 0x3F);
$str .= (0x80 | $c & 0x3F);
}
return $str;
}
/**
* 简体、繁体中文 <-> UTF8 互相转换的函数
*
* 详细说明
* @形参
* @访问 内部
* @返回 字符串
* @throws
*/
function CHStoUTF8() {
if ($this->config['source_lang'] == 'BIG-5' || $this->config['source_lang'] == 'GBK') {
$ret = '';
while ($this->SourceText) {
if (ord($this->SourceText{0}) > 127) {
if ($this->config['source_lang'] == 'BIG-5') {
$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;
}
}
?>