help with this php code

S

stevelori99

Newbie

Nov 5, 2012

12

0

• Nov 28, 2012

• #1

hello friend some one can tell my
what this code do

$userAgent = $_SERVER['HTTP_USER_AGENT'];


if(stripos($userAgent, 'google' ) === FALSE) {

}

 

TZ2011

Senior Member

Jun 26, 2011

1,095

1,131

• Nov 28, 2012

• #2

Code is looking for string in user agent, if google come to your site , will be redirected to some other page or blocked, depends of the rest of the code.
If you plan to use it its better to look for host string, not for user agent since can be easily faked.

 

Abstroose

Elite Member

Nov 20, 2008

2,181

3,634

• Nov 28, 2012

• #3

It's called cloaking, but a pretty lousy attempt at it.

 

artizhay

BANNED

Nov 21, 2010

1,867

1,340

• Nov 28, 2012

• #4

First line gets the browser's useragent and stores it in $userAgent, i.e.

Code:

Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.15 (KHTML, like Gecko) Chrome/24.0.1295.0 Safari/537.15

The second line checks to make sure the term "Google" (case-insensitive) is not in the $userAgent variable, because Google crawlers have the term "Google" in their useragents.

If the term "Google" is not in $userAgent, then the code that would be inside the curly braces would be executed.

 

audioguy

Power Member

Jun 12, 2010

608

224

• Nov 28, 2012

• #5

Yea, it's lousy anyone can change useragent string easily.

If someone else from Google browser your site directly, the code inside the curly bracket is not executed. Perhaps the complete code also check IPs?

 

J

Jenny30

Regular Member

Feb 2, 2012

478

32

• Nov 28, 2012

• #6

Thats called cloaking but a really poor attempt its easily faked.

 

E

ecko911

Newbie

Apr 15, 2009

22

1

• Nov 30, 2012

• #7

It means that if the useragent isn't google crawler the code will execute something that should be in brackets.

 

S

stevelori99

Newbie

Nov 5, 2012

12

0

• Dec 3, 2012
• Thread Starter Thread Starter

• #8

can someone change this code to a better one
i am php programer but i don't really know how to do this better

 

lambofgods

Junior Member

Oct 12, 2012

172

35

• Dec 5, 2012

• #9

its called CLOAKING!!