I need to calculate values but some values do not give numbers - php

Question

switch ($mybb->input['action'])
{
case 'ranks':
$ranks = '';
$rank['image'] = htmlspecialchars_uni($rank['image']);
$rank['name'] = htmlspecialchars_uni($rank['name']);
$query = $db->simple_select('myachievements_ranks', '*', '', array('order_dir' => 'desc', 'order_by' => 'level'));
while ($rank = $db->fetch_array($query))
{
$bgcolor = alt_trow();
$required = '';
$rank['image'] = htmlspecialchars_uni($rank['image']);
$rank['name'] = htmlspecialchars_uni($rank['name']);
$rank['description'] = nl2br(htmlspecialchars_uni($rank['description']));
if ($rank['achievements_apid'] > 0)
{
// get achievement name
$query2 = $db->simple_select('myachievements_numposts', 'numposts,image,name,cat', 'apid='.intval($rank['achievements_apid']));
$achievement = $db->fetch_array($query2);
$achievement['numposts'] = ($mybb->user['postnum'] *100) /$achievement['numposts'] ;
if ($achievement['numposts'] > 100)
{
$achievement['pneed'] = 100;
}else{
$achievement['pneed'] = $achievement['numposts'];
}
if (strlen($achievement['pneed']) > 4)
$achievement['pneed'] = substr($achievement['pneed'], 0, 4);
$required .= '<div class="rankprogress d-flex flex-row align-items-center overflow-hidden relative"><div class="profile-yos rounded ml-3 text-center flex-shrink-0 flex-grow-0 yos-'.htmlspecialchars_uni($achievement['cat']).'" data-toggle="tooltip" data-placement="top" title="" data-original-title="'.htmlspecialchars_uni($achievement['name']).'"><i class="far fa-'.htmlspecialchars_uni($achievement['image']).'"></i></div>'.htmlspecialchars_uni($achievement['pneed']).'%<div class="ggprogress" style="width: '.htmlspecialchars_uni($achievement['pneed']).'%;"></div></div>';
}
if ($rank['achievements_aaid'] > 0)
{
// get achievement name
$query2 = $db->simple_select('myachievements_activity', 'time,image,name,cat', 'aaid='.intval($rank['achievements_aaid']));
$achievement = $db->fetch_array($query2);
$achievement['time'] = ($mybb->user['timeonline'] *100) /$achievement['time'] ;
if ($achievement['time'] > 100)
{
$achievement['ttneed'] = 100;
}else{
$achievement['ttneed'] = $achievement['time'];
}
if (strlen($achievement['ttneed']) > 4)
$achievement['ttneed'] = substr($achievement['ttneed'], 0, 4);
$required .= '<div class="rankprogress d-flex flex-row align-items-center overflow-hidden relative"><div class="profile-yos rounded ml-3 text-center flex-shrink-0 flex-grow-0 yos-'.htmlspecialchars_uni($achievement['cat']).'" data-toggle="tooltip" data-placement="top" title="" data-original-title="'.htmlspecialchars_uni($achievement['name']).'"><i class="far fa-'.htmlspecialchars_uni($achievement['image']).'"></i></div>'.htmlspecialchars_uni($achievement['ttneed']).'%<div class="ggprogress" style="width: '.htmlspecialchars_uni($achievement['ttneed']).'%;"></div></div>';
}
if ($rank['achievements_acid'] > 0)
{
// get achievement name
$query2 = $db->simple_select('myachievements_custom', 'image,name,cat', 'acid='.intval($rank['achievements_acid']));
$achievement = $db->fetch_array($query2);
$required .= '<div class="profile-yos rounded ml-3 text-center flex-shrink-0 flex-grow-0 yos-'.htmlspecialchars_uni($achievement['cat']).'" data-toggle="tooltip" data-placement="top" title="" data-original-title="'.htmlspecialchars_uni($achievement['name']).'"><i class="far fa-'.htmlspecialchars_uni($achievement['image']).'"></i></div>';
}
if ($rank['achievements_apoid'] > 0)
{
// get achievement name
$query2 = $db->simple_select('myachievements_points', 'points,image,name,cat', 'apoid='.intval($rank['achievements_apoid']));
$achievement = $db->fetch_array($query2);
$achievement['points'] = ($mybb->user['newpoints'] *100) /$achievement['points'] ;
if ($achievement['points'] > 100)
{
$achievement['npneed'] = 100;
}else{
$achievement['npneed'] = $achievement['points'];
}
if (strlen($achievement['npneed']) > 4)
$achievement['npneed'] = substr($achievement['npneed'], 0, 4);
$required .= '<div class="rankprogress d-flex flex-row align-items-center overflow-hidden relative"><div class="profile-yos rounded ml-3 text-center flex-shrink-0 flex-grow-0 yos-'.htmlspecialchars_uni($achievement['cat']).'" data-toggle="tooltip" data-placement="top" title="" data-original-title="'.htmlspecialchars_uni($achievement['name']).'"><i class="far fa-'.htmlspecialchars_uni($achievement['image']).'"></i></div>'.htmlspecialchars_uni($achievement['npneed']).'%<div class="ggprogress" style="width: '.htmlspecialchars_uni($achievement['npneed']).'%;"></div></div>';
}
eval("\$myachievements = \"".$templates->get("myachievements_ranks")."\";");
break;
}
$totalprogress = ($achievement['pneed'] + $achievement['ttneed'] + $achievement['npneed']) /3;`
I want to calculate following values
$totalprogress = ($achievement['pneed'] + $achievement['ttneed'] + $achievement['npneed']) /3;
But whole variable is not giving values