==>简体_PHP

/**** 繁体简体 ****/

/**
  码表的取得：
    http://netcity.hinet.net/kstchieh/table.zip
  包中有两个文件：big5-gb.table，gb-big5.table
  函数gb2big5由于没有big5环境，故未能详细测试
*/

// 将码表予装入内存
$filename = "big5-gb.table";
$fp = fopen($filename, "rb");
$big5 = fread($fp,filesize($filename));
fclose($fp);
$filename = "gb-big5.table";
$fp = fopen($filename, "rb");
$gb = fread($fp,filesize($filename));
fclose($fp);

/**
  Big5码转换成GB码
*/
function big52gb($Text) {
  global $big5;
  $max = strlen($Text)-1;
  for($i=0;$i     $h = ord($Text[$i]);
    if($h>=160) {
      $l = ord($Text[$i+1]);
      if($h==161 && $l==64) {
        $gb = "　";
      }else{
        $p = ($h-160)*510+($l-1)*2;
        $gb = $big5[$p].$big5[$p+1];
      }
      $Text[$i] = $gb[0];
      $Text[$i+1] = $gb[1];
      $i++;
    }
  }
  return $Text;
}

/**
  GB码转换成Big5码
*/
function gb2big5($Text) {
  global $gb;
  $max = strlen($Text)-1;
  for($i=0;$i     $h = ord($Text[$i]);
    if($h>=160) {
      $l = ord($Text[$i+1]);
      if($h==161 && $l==64) {
        $big = "　";
      }else{
        $p = ($h-160)*510+($l-1)*2;
        $big = $gb[$p].$gb[$p+1];
      }
      $Text[$i] = $big[0];
      $Text[$i+1] = $big[1];
      $i++;
    }
  }
  return $Text;
}

?>

/**** 测试 ****/
$a = "啊阿埃挨哎唉哀皑癌蔼矮艾碍爱隘鞍氨";
echo "原简体 $a
";
$a = "摆甁玼玸絁砾魔窯︺锚稲筰綽";
echo "原繁体 $a
";
$a=big52gb($a);
echo "转简体 $a
";
$a=gb2big5($a);
echo "转繁体 $a
";
?>