php獲取從百度搜索進入網站的關鍵詞

 1 <?php 
 2 
 3 function search_word_from() { 
 4 $referer = isset($_SERVER['HTTP_REFERER'])?$_SERVER['HTTP_REFERER']:''; 
 5 if(strstr( $referer, 'baidu.com')){ //百度 
 6 preg_match( "|baidu.+wo?r?d=([^\\&]*)|is", $referer, $tmp ); 
 7 $keyword = urldecode( $tmp[1] ); 
 8 $from = 'baidu'; （PS：T不錯的PHP Q扣峮：276167802，驗證：csl） 
 9 }elseif(strstr( $referer, 'google.com') or strstr( $referer, 'google.cn')){ //谷歌 
10 preg_match( "|google.+q=([^\\&]*)|is", $referer, $tmp ); 
11 $keyword = urldecode( $tmp[1] ); 
12 $from = 'google'; www.jbxue.com
13 }elseif(strstr( $referer, 'so.com')){ //360搜索 
14 preg_match( "|so.+q=([^\\&]*)|is", $referer, $tmp ); 
15 $keyword = urldecode( $tmp[1] ); 
16 $from = '360'; 
17 }elseif(strstr( $referer, 'sogou.com')){ //搜狗 
18 preg_match( "|sogou.com.+query=([^\\&]*)|is", $referer, $tmp ); 
19 $keyword = urldecode( $tmp[1] ); 
20 $from = 'sogou'; 
21 }elseif(strstr( $referer, 'soso.com')){ //搜搜 
22 preg_match( "|soso.com.+w=([^\\&]*)|is", $referer, $tmp ); 
23 $keyword = urldecode( $tmp[1] ); 
24 $from = 'soso'; 
25 }else { 
26 $keyword =''; 
27 $from = ''; 
28 }
29 
30 return array('keyword'=>$keyword,'from'=>$from); 
31 }
32 
33 //如下爲測試 
34 //在搜索引擎搜索個關鍵詞，進入網站 
35 $word = search_word_from(); 
36 if(!empty($word['keyword'])){ 
37 echo '關鍵字：'.$word['keyword'].' 來自：'.$word['from']; 
38 } 
39 ?>