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php中获取关键词及所属来源搜索引擎名称的代码
摘要:复制代码代码如下:greengnncodesGO

复制代码 代码如下:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<title>greengnn codes</title>

</head>

<body>

<form action="index.php" method="get">

<input name="url" size="80"><button type="submit">GO</button>

</form>

<?php

//获取关键词及所属来源搜索引擎名称

$search_url = isset($_GET['url'])?$_GET['url']:''; //代表传入的地址

/*$search_url = urldecode($search_url);

print_r($search_url);

*/

$config = array(

"s1"=>array(

"domain" => "google.com",

"kw" => "q",

"charset" => "utf-8"

),

"s3"=>array(

"domain" => "google.cn",

"kw" => "q",

"charset" => "utf-8"

),

"s4"=>array(

"domain" => "baidu.com",

"kw" => "wd",

"charset" => "gbk"

),

"s5"=>array(

"domain" => "soso.com",

"kw" => "q",

"charset" => "utf-8"

),

"s6"=>array(

"domain" => "yahoo.com",

"kw" => "q",

"charset" => "utf-8"

),

"s7"=>array(

"domain" => "bing.com",

"kw" => "q",

"charset" => "utf-8"

),

"s8"=>array(

"domain" => "sogou.com",

"kw" => "query",

"charset" => "gbk"

),

"s9"=>array(

"domain" => "youdao.com",

"kw" => "q",

"charset" => "utf-8"

),

);

//函数作用:从url中提取关键词。参数说明:url及关键词前的字符。

function get_keyword($url,$kw_start)

{

$start = stripos($url,$kw_start);

$url = substr($url,$start+strlen($kw_start));

$start = stripos($url,'&');

if ($start>0)

{

$start=stripos($url,'&');

$s_s_keyword=substr($url,0,$start);

}

else

{

$s_s_keyword=substr($url,0);

}

return $s_s_keyword;

}

$arr_key = array();

foreach($config as $item){

$sh = preg_match("/b{$item['domain']}b/",$search_url);

if($sh){

$query = $item['kw']."=";

$s_s_keyword = get_keyword($search_url,$query);

$F_Skey=urldecode($s_s_keyword);

if($item['charset']=="utf-8"){

$F_Skey=iconv( "UTF-8","gb2312//IGNORE",$F_Skey); //最终提取的关键词

}

$keys = explode(" ",$F_Skey);

$arr_key[$item['domain']] = $keys;

}

}

echo "<pre>";

print_r($arr_key);

?>

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