utf8字符串截取

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utf8字符串截取.rar
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/**
* utf8字符串截取
* @author kokko
* @version 1.0 2007-10-26
* @param string $string
* @param int $length
* @param string $etc
* @param bool $count_words
* @return string
*/
function func_subString( $string,$length = 80,$etc='...',$count_words = true ) {
mb_internal_encoding("UTF-8");
$wordscut="";
if ($length == 0) return '';
if ( strlen( $string ) =128 ){
    $j = $j+2;
   }else{
    $j = $j + 1;
   }
   if ($j >= $length ) {
     return $wordscut.$etc;
   }
  }
  return join('', $info[0]);
}
return join("",array_slice( $info[0],0,$length ) ).$etc;
}