因為register_globals的預設設定變更造成了影響，是時候改變程式碼了！
from php.net
How does the PHP directive register_globals affect me?
<?php
// Using $_GET here is preferred
echo $_GET['animal'];
// For $animal to exist, register_globals must be on
// DO NOT DO THIS
echo $animal;
// This applies to all variables, so $_SERVER too
echo $_SERVER['PHP_SELF'];
// Again, for $PHP_SELF to exist, register_globals must be on
// DO NOT DO THIS
echo $PHP_SELF;
?>