$s = str_replace("&postnum&", $post['num'], $s);
    $s = str_replace("&postcount&", $post['uposts'], $s);
    $s = str_replace("&level&", $lvl=calclvl($exp), $s);
    $s = str_replace("&exp&", $exp, $s);
    $s = str_replace("&expdone&", $edone=($exp - calclvlexp($lvl)), $s);
    $s = str_replace("&expnext&", $eleft=calcexpleft($exp), $s);
    $s = str_replace("&lvlexp&", calclvlexp($lvl+1), $s);
    $s = str_replace("&lvllen&", lvlexp($lvl), $s);
    $s = str_replace("&expgain&", calcexpgainpost($post['uposts'],(time() - $post['uregdate']) / 86400), $s);
    $s = str_replace("&expgaintime&", calcexpgaintime($post['uposts'],(time() - $post['uregdate']) / 86400), $s);
    $s = str_replace("&exppct&", sprintf("%d" ,$edone * 100 / lvlexp($lvl)), $s);
    $s = str_replace("&exppct2&", sprintf("%d", $eleft * 100 / lvlexp($lvl)), $s);
    $s = str_replace("&rank&", getrank($post['urankset'], $post['uposts']), $s);
    $s = str_replace("&rankname&", preg_replace("'<(.*?)>(.*?)</(.*?)>'si","",getrank($post['urankset'], $post['uposts'])), $s);

function calcexpgainpost($posts,$days)	{return @floor(1.5*@pow($posts*$days,0.5));}
function calcexpgaintime($posts,$days)	{return sprintf('%01.3f',172800*@(@pow(@($days/$posts),0.5)/$posts));}
function calcexpleft($exp)			{return calclvlexp(calclvl($exp)+1)-$exp;}
function totallvlexp($lvl)			{return calclvlexp($lvl+1)-calclvlexp($lvl);}
function calclvlexp($lvl){
  if($lvl==1) return 0;
  else return floor(pow(abs($lvl),3.5))*($lvl>0?1:-1);
}
function calcexp($posts,$days){
  if(@($posts/$days)>0) return floor($posts*pow($posts*$days,0.5));
  elseif($posts==0) return 0;
  else return 'NAN';
}
function calclvl($exp){
  if($exp>=0){
    $lvl=floor(@pow($exp,2/7));
    if(calclvlexp($lvl+1)==$exp) $lvl++;
    if(!$lvl) $lvl=1;
  }else $lvl=-floor(pow(-$exp,2/7));
  if(is_string($exp) && $exp=='NAN') $lvl='NAN';
  return $lvl;
}