题目:如下代码所示:
<?php
$whitelist = array(‘db_sql.php’,’db_page.php’);
$page =???
$_page = urldecode($page);
$_page = mb_substr($_page,0,mb_strpos($_page . ‘?’, ‘?’));
if (in_array($_page, $whitelist)) {
include($page);
}
?>
$page变量的值为(),可以成功包含文件
A、$page
B、$page
C、$page
D、$page