在linux上怎么把中文转换成utf8的编码 呀？

lenruobin

最近写用php写短信程序，发现在linux给手机发中文短信是乱码。而英文正常。
     在网上找一了个转换程序也不能用。不知道谁有这方面资料!

<?php
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);

$utf8="";
while($gb)
{
if (ord(substr($gb,0,1))>;127)
{
$this=substr($gb,0,2);
$gb=substr($gb,2,strlen($gb)-2);
$utf8.=u2utf8(hexdec($codetable[hexdec(bin2hex($this))-0x8080]));
}
else
{
$this=substr($gb,0,1);
$gb=substr($gb,1,strlen($gb)-1);
$utf8.=u2utf8($this);
}
}

/*$ret="";
for($i=0;$i $ret.=chr(substr($utf8,$i,3));

return $ret;*/

return $utf8;
}
function u2utf8($c)
{
//for($i=0;$i $str="";
if ($c < 0x80) {
$str.=$c;
}
else if ($c < 0x800) {
$str.=chr(0xC0 | $c>;>;6);
$str.=chr(0x80 | $c & 0x3F);
}
else if ($c < 0x10000) {
$str.=chr(0xE0 | $c>;>;12);
$str.=chr(0x80 | $c>;>;6 & 0x3F);
$str.=chr(0x80 | $c & 0x3F);
}
else if ($c < 0x200000) {
$str.=chr(0xF0 | $c>;>;1;
$str.=chr(0x80 | $c>;>;12 & 0x3F);
$str.=chr(0x80 | $c>;>;6 & 0x3F);
$str.=chr(0x80 | $c & 0x3F);
}
return $str;
}
?>;

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mail :lenruobin@cnean.net