搜索引擎蜘蛛捕捉器(PHP)

实现蜘蛛捕捉的PHP代码如下：

function

get_naps_bot()

{

$useragent

=

strtolower

(

$_SERVER

[

'

HTTP_USER_AGENT

'

]);

if

(

strpos

(

$useragent

,

'

googlebot

'

)

!==

false

){

return

'

Googlebot

'

;

}

if

(

strpos

(

$useragent

,

'

msnbot

'

)

!==

false

){

return

'

MSNbot

'

;

}

if

(

strpos

(

$useragent

,

'

slurp

'

)

!==

false

){

return

'

Yahoobot

'

;

}

if

(

strpos

(

$useragent

,

'

baiduspider

'

)

!==

false

){

return

'

Baiduspider

'

;

}

if

(

strpos

(

$useragent

,

'

sohu-search

'

)

!==

false

){

return

'

Sohubot

'

;

}

if

(

strpos

(

$useragent

,

'

lycos

'

)

!==

false

){

return

'

Lycos

'

;

}

if

(

strpos

(

$useragent

,

'

robozilla

'

)

!==

false

){

return

'

Robozilla

'

;

}

return

false

;

}

function

nowtime(){

$date

=

date

(

"

Y-m-d.G:i:s

"

);

return

$date

;

}

$searchbot

=

get_naps_bot();

if

(

$searchbot

) {

$tlc_thispage

=

addslashes

(

$_SERVER

[

'

HTTP_USER_AGENT

'

]);

$url

=

$_SERVER

[

'

HTTP_REFERER

'

];

$file

=

"

robotlog.txt

"

;

$time

=

nowtime();

$data

=

fopen

(

$file

,

"

a

"

);

fwrite

(

$data

,

"

Time:$time robot:$searchbot URL:$tlc_thispage

"

);

fclose

(

$data

);

}