Improvement of the function for outputting Chinese characters in GD_PHP tutorial

Thanks to sadly for writing a function for outputting Chinese characters in GD.
During use, I found that the string output by this version must be pure Chinese and cannot be mixed with English.
This bug has been fixed and shared with everyone. . .
//Program writen by sadly www.phpx.com
//modified by agun 2000/6/20
function gb2utf8($gb)
{
if (!trim($gb))
return $gb;
$filename="gb2312.txt";
$tmp=file($filename);
$codetable=array();
while(list($key,$value)=each($tmp))
$codetable[hexdec(substr($value,0,6))]=substr($value,7,6);
$ret="";
$utf8="";
while($gb)
{
if (ord(substr($gb,0,1))>127)
{
$this=substr($gb,0,2);
$gb=substr($gb,2,strlen($gb));
$utf8=u2utf8(hexdec( $codetable[hexdec(bin2hex($this))-0x8080]));
for($i=0;$i$ret.=chr( substr($utf8,$i,3));
}
else
{
$ret.=substr($gb,0,1);
$gb=substr($ gb,1,strlen($gb));
}
}
return $ret;
}
function u2utf8($c)
{
for($i =0;$i$str="";
if ($c < 0x80) {
$str.=$c;
}
else if ($c < 0x800) {
$str.=(0xC0 | $c>>6);
$str.=(0x80 | $c & 0x3F);
}
else if ($c < 0x10000) {
$str.=(0xE0 | $c>>12);
$str.=(0x80 | $c>>6 & 0x3F );
$str.=(0x80 | $c & 0x3F);
}
else if ($c < 0x200000) {
$str.=(0xF0 | $c>> 18);
$str.=(0x80 | $c>>12 & 0x3F);
$str.=(0x80 | $c>>6 & 0x3F);
$str.= (0x80 | $c & 0x3F);
}
return $str;
}
Header("Content-type: image/gif");
$im = imagecreate(300,150) ;
$bkg = ImageColorAllocate($im, 0,0,0);
$clr = ImageColorAllocate($im, 255,255,255);
$fnt = "c:windowsfontssimsun.ttf";
//include("gb2utf8.php");
$str = gb2utf8("Chinese agun Agun");
ImageTTFText($im, 30, 0, 50,50, $clr, $fnt, $ str);
ImageGif($im);
ImageDestroy($im);
?>

http://www.bkjia.com/PHPjc/631873.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631873.htmlTechArticleThanks to sadly for writing the function for outputting Chinese characters in GD. I found this version output during use The string must be pure Chinese and cannot contain English. This bug has been fixed, and everyone...