big52utf8.php

function big52utf8($big5str) {
  $blen = strlen($big5str);
  $utf8str = "";

  for($i=0; $i<$blen; $i++) {

    $sbit = ord(substr($big5str, $i, 1));
    //echo $sbit;
    //echo "<br>";
    if ($sbit < 129) {
      $utf8str.=substr($big5str,$i,1);
    }elseif ($sbit > 128 && $sbit < 255) {
      $new_word = iconv("big5", "UTF-8", substr($big5str,$i,2));
      $utf8str.=($new_word=="")?" ":$new_word;
      $i++;
    }
  }
  return $utf8str;
}