Description:
------------
$Val = cos(deg2rad(60));
$Val = $Val * 10;
echo $Val.'---'.intval($Val).'<br>';
echo $Val.'---'.floor($Val);

then the output of this simple code should be:
5---5
5---5

but the real output is:
5---4
5---4


Test script:
---------------
<?php

  $Val = cos(deg2rad(60)); 
  $Val = $Val * 10;
  echo $Val.'---'.intval($Val).'<br>';
  echo $Val.'---'.floor($Val);

?>

Expected result:
----------------
5---5
5---5

Actual result:
--------------
5---4
5---4