Need simple line of code to block visitor based on referrer

[brinked]

So someone is scraping one of my sites daily.

The referrer is always similar...its an internal IP address but the scraper script always has the same name like scraper-script.xml

I would like a simple line of php code that pretty much says

if referrer string contains the word "scraper" then deny access to website. I know strstr is a function that can read a string within a word or something...can someone help me put something together if its not too much of a hassle?

Or any other recommendations? I tried blocking the IP but the IP for the visitor keeps changing.

[TheMadScientist]

Mod_Rewrite...

RewriteEngine on
RewriteCond %{HTTP_USER_AGENT} scraper
RewriteRule .? - [F]

[b0r1s]

$ref=$_SERVER['HTTP_REFERER'];
if (preg_match('/scrapper/',$ref)){ exit; }

Not tested but should work !

[brinked]

thanks guys works great!

[dreamcatcher]

$ref=$_SERVER['HTTP_REFERER'];
if (preg_match('/scrapper/',$ref)){ exit; }

Referer isn`t always set, so should be:

if (isset($_SERVER['HTTP_REFERER'])) {
$ref=$_SERVER['HTTP_REFERER'];
if (preg_match('/scrapper/',$ref)){ exit; }
}

dc