<?php
$x=3;
echo $x++,"<BR> ";
echo $x,"<BR> ";
$x=3; 
echo ++$x,"<BR> "; 
echo $x,"<BR> ";
$x=3; 
echo $x--,"<BR> "; 
echo $x,"<BR> ";
$x=3; 
echo --$x,"<BR> "; 
echo $x,"<BR> "; 
?>