<?php
$x=10;
echo $x;
echo "\n";
$y=20;
$y += 100;
echo $y;
$z=50;
$z -= 25;
echo $z;
$i=5;
$i *= 6;
echo $i;
$j=10;
$j /= 5;
echo $j;
$k=15;
$k %= 4;
echo $k;
?>