.htaccess中的错误页面 - 找到请求的页面？

Question

I use my .htaccess file to redirect visitors with errors to my custom error pages.
The server is an Apache with PHP 5.2 so I code in PHP.
I wish to know, on my PHP error pages, what page did the visitor request and gave an error?

Answer 1

$_SERVER['REQUEST_URI']

or

$_SERVER['REDIRECT_URL'] 

should give you the information.