gb2utf8.php 文件如下:
<?
Class GB2UTF8
{
var $gb; // 待转换的GB2312字符串
var $utf8; // 转换后的UTF8字符串
var $CodeTable; // 转换过程中使用的GB2312代码文件数组
var $ErrorMsg; // 转换过程之中的错误讯息
function GB2UTF8($InStr="")
{
$this->gb=$InStr;
$this->SetGb2312(
($this->gb=="")?0:$this->Convert(
}
function SetGb2312($InStr="gb2312.txt")
{ // 设置gb2312代码文件,默认为gb2312.txt
$this->ErrorMsg="";
$tmp=@file($InStr
if (!$tmp) {
$this->ErrorMsg="No GB2312";
return false;
}
$this->CodeTable=array(
while(list($key,$value)=each($tmp)) {
$this->CodeTable[hexdec(substr($value,0,6))]=substr($value,7,6
}
}
function Convert()
{ // 转换GB2312字符串到UTF8字符串,需预先设置$gb
$this->utf8="";
if(!trim($this->gb) || $this->ErrorMsg!="") {
return ($this->utf8=$this->ErrorMsg
}
$str=$this->gb;
while($str) {
if (ord(substr($str,0,1))>127)
{
$tmp=substr($str,0,2
$str=substr($str,2,strlen($str)
$tmp=$this->U2UTF8(hexdec($this->CodeTable[hexdec(bin2hex($tmp))-0x8080])
for($i=0;$i<strlen ($tmp
$i+=3)
$this->utf8.=chr(substr($tmp,$i,3)
}
else
{
$tmp=substr($str,0,1
$str=substr($str,1,strlen($str)
$this->utf8.=$tmp;
}
}
return $this->utf8;
}
function U2UTF8($InStr)
{
for($i=0;$i<count($InStr
$i++)
$str="";
if ($InStr < 0x80) {
$str.=ord($InStr
}
else if ($InStr < 0x800) {
$str.=(0xC0 | $InStr>>6
$str.=(0x80 | $InStr & 0x3F
}
else if ($InStr < 0x10000) {
$str.=(0xE0 | $InStr>>12
$str.=(0x80 | $InStr>>6 & 0x3F
$str.=(0x80 | $InStr & 0x3F
}
else if ($InStr < 0x200000) {
$str.=(0xF0 | $InStr>>18
$str.=(0x80 | $InStr>>12 & 0x3F
$str.=(0x80 | $InStr>>6 & 0x3F
$str.=(0x80 | $InStr & 0x3F
}
return $str;
}
}
?>
Class GB2UTF8
{
var $gb; // 待转换的GB2312字符串
var $utf8; // 转换后的UTF8字符串
var $CodeTable; // 转换过程中使用的GB2312代码文件数组
var $ErrorMsg; // 转换过程之中的错误讯息
function GB2UTF8($InStr="")
{
$this->gb=$InStr;
$this->SetGb2312(
($this->gb=="")?0:$this->Convert(
}
function SetGb2312($InStr="gb2312.txt")
{ // 设置gb2312代码文件,默认为gb2312.txt
$this->ErrorMsg="";
$tmp=@file($InStr
if (!$tmp) {
$this->ErrorMsg="No GB2312";
return false;
}
$this->CodeTable=array(
while(list($key,$value)=each($tmp)) {
$this->CodeTable[hexdec(substr($value,0,6))]=substr($value,7,6
}
}
function Convert()
{ // 转换GB2312字符串到UTF8字符串,需预先设置$gb
$this->utf8="";
if(!trim($this->gb) || $this->ErrorMsg!="") {
return ($this->utf8=$this->ErrorMsg
}
$str=$this->gb;
while($str) {
if (ord(substr($str,0,1))>127)
{
$tmp=substr($str,0,2
$str=substr($str,2,strlen($str)
$tmp=$this->U2UTF8(hexdec($this->CodeTable[hexdec(bin2hex($tmp))-0x8080])
for($i=0;$i<strlen ($tmp
$i+=3)
$this->utf8.=chr(substr($tmp,$i,3)
}
else
{
$tmp=substr($str,0,1
$str=substr($str,1,strlen($str)
$this->utf8.=$tmp;
}
}
return $this->utf8;
}
function U2UTF8($InStr)
{
for($i=0;$i<count($InStr
$i++)
$str="";
if ($InStr < 0x80) {
$str.=ord($InStr
}
else if ($InStr < 0x800) {
$str.=(0xC0 | $InStr>>6
$str.=(0x80 | $InStr & 0x3F
}
else if ($InStr < 0x10000) {
$str.=(0xE0 | $InStr>>12
$str.=(0x80 | $InStr>>6 & 0x3F
$str.=(0x80 | $InStr & 0x3F
}
else if ($InStr < 0x200000) {
$str.=(0xF0 | $InStr>>18
$str.=(0x80 | $InStr>>12 & 0x3F
$str.=(0x80 | $InStr>>6 & 0x3F
$str.=(0x80 | $InStr & 0x3F
}
return $str;
}
}
?>
测试文件如下:
代码:
<?php
Header("Content-type: image/png"
$im = imagecreate(400,300
$black = ImageColorAllocate($im, 0,0,0
$white = ImageColorAllocate($im, 184,44,6
include("gb2utf8.php"
$obj=new gb2utf8(
$obj->gb="123abc中国456def测试正确";
$obj->Convert(
ImageTTFText($im, 20, 0, 5, 50, $white, "SIMKAI.TTF", $obj->utf8
ImagePNG($im
ImageDestroy($im
?>
Header("Content-type: image/png"
$im = imagecreate(400,300
$black = ImageColorAllocate($im, 0,0,0
$white = ImageColorAllocate($im, 184,44,6
include("gb2utf8.php"
$obj=new gb2utf8(
$obj->gb="123abc中国456def测试正确";
$obj->Convert(
ImageTTFText($im, 20, 0, 5, 50, $white, "SIMKAI.TTF", $obj->utf8
ImagePNG($im
ImageDestroy($im
?>
说明:
需要正确设置font文件,请先确认可以使用font直接(不使用gb2utf8)输出英文。
gb2312.txt请在网上查找