我想不出标题的便利PHP东西；根据我们所在的位置显示不同的数据

Posted 2021-02-25

If user enters city.php from footer.php, page will return certain string. If user enters independently, solution lets user see predefined string (in this case, 'your city').

footer.php:
 
<ul>
    <li><a href="city.php?city=<?php echo urlencode("Blerg County"); ?>&state=<?php echo urlencode("Massachusetts"); ?>">Blerg County</a></li>
 </ul>
 
city.php:
 
<?php echo urldecode($_GET['city']); ?>
and
<?php echo urldecode($_GET['state']); ?>
 
solution:
 
echo isset($_GET['city']) ? htmlentities($_GET['city']) : 'your city';