<?
echo $user1;
echo $user2;
echo $user3;
echo $user4;for ($i = 1; $i <= 4; $i ++)
{
$tmp="user".$i;
echo $$tmp
echo "<br>";
}
?>
echo $user1;
echo $user2;
echo $user3;
echo $user4;for ($i = 1; $i <= 4; $i ++)
{
$tmp="user".$i;
echo $$tmp
echo "<br>";
}
?>
<?
echo $user1;
echo $user2;
echo $user3;
echo $user4;for ($i = 1; $i <= 4; $i ++)
{
$tmp="user".$i;
echo $$tmp;
echo "<br>";
}
?>
echo $user1;
echo $user2;
echo $user3;
echo $user4;for ($i = 1; $i <= 4; $i ++)
{
echo ${"user".$i};
echo "<br>";
}
?>
一句话,给分