http_referer 获取用户来路实例,这是个php自来全局变量,所以我们不多介绍了,直接看实例:
- <?php
- if (isset($_server['http_referer'])) {
- print "the page you were on previously was {$_server['http_referer']}<br />";
- } else {
- print "you didn't click any links to get here<br />";
- }
- ?>
-
- <a href="refer.php">click me!</a>