在GD中输出汉字的函数的改进

类别:编程语言 点击:0 评论:0 推荐:
感谢sadly为我们写出了在GD中输出汉字的函数,

我在使用中发现此版本输出的字符串必须为纯中文,不能夹杂英文。

随修改了此bug,与大家分享。。。



<?

//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)



else



}

return $ret;

}



function u2utf8($c)

{

for($i=0;$i<count($c);$i++)

$str="";

if ($c < 0x80)

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("中国agun阿棍");

ImageTTFText($im, 30, 0, 50,50, $clr, $fnt, $str);

ImageGif($im);

ImageDestroy($im);

?>


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