<?php
include_once '../core/init.php';
if(isset($_GET['id']))
{
$id = preg_replace('#[^0-9]#1', '', $_GET['id']);
}
$sql = mysql_query("SELECT ratings FROM books WHERE id='$id'");
while($row = mysql_fetch_array($sql))
{
$mynums = $row['ratings'];
$expl = explode(",", $mynums);
$count = count($expl);
$sum = array_sum($expl);
$avg = $sum / $count;
$roundup = floor($avg);
if($roundup == 0)
{
echo "0";
}else if($roundup == 1)
{
echo "1";
}else if($roundup == 2)
{
echo "2";
}else if($roundup == 3)
{
echo "3";
}else if($roundup ==4)
{
echo "4";
}else if($roundup ==5)
{
echo "5";
}
}
?>
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