$a = 10 ; //Do it first with integers
echo " a = $a
" ;
$a += 5 ;
echo " \$a += 5 makes a = $a
" ;
$a -= 3 ;
echo " \$a -= 3 makes a = $a
" ;
$a /= 3 ;
echo " \$a /= 3 makes a = $a
" ;
$a *= 5 ;
echo " \$a *= 5 makes a = $a
" ;
echo "
" ;
$a = 3.3 ; //Do it next with reals
echo " a = $a
" ;
$a += 5.1 ;
echo " \$a += 5 makes a = $a
" ;
$a -= 3 ;
echo " \$a -= 3 makes a = $a
" ;
$a /= 3.1 ;
echo " \$a /= 3 makes a = $a
" ;
$a *= 5.4 ;
echo " \$a *= 5 makes a = $a
" ;
echo "
" ;
$a = 0 ; //Counters
echo " a = $a
" ;
$a++ ;
echo " \$a++ makes a = $a
" ;
$a++ ;
echo " \$a++ makes a = $a
" ;
$a++ ;
echo " \$a++ makes a = $a
" ;
$a-- ;
echo " \$a-- makes a = $a
" ;
$a-- ;
echo " \$a-- makes a = $a
" ;
$a++ ;
echo " \$a++ makes a = $a
" ;
?>