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PHP采集百度关键词输入的 下拉表内关键词

<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link type="text/css" rel="stylesheet" 

href="http://zone.wooyun.org/themes/wooyun/css/style.css"/></head>
<body>
<?php
/*
another:VIP
date:2013-2-26
*/
$word=$_GET['word'];
if ($word=="")
{
echo <<<EOF
<form action="" method="get">
  <p>关键词: <input type="text" name="word" /></p>
  <input type="submit" value="采集" />
</form>
EOF;
}
else
{

$data=file_get_contents('http://suggestion.baidu.com/su?wd='.$word);
$data=mb_convert_encoding($data, 'UTF-8', 'UTF-8,GBK,GB2312,BIG5' );
$data_temp=strpos($data,"x"); 
$data=substr_replace($data,"",$data_temp,17); 
$data = trim($data,");");
$data = trim($data,"{");
$data=preg_replace("/q:.+?.e,/",'', $data); 
$data = str_replace("[","",$data);
$data = str_replace("]","",$data);
$data = "[".$data."]";
$data = str_replace(",","},s:",$data);
$data = str_replace("s:","{\"s\":",$data);//复杂的处理,以符合json格式
$dc=json_decode($data);
for ($n=0; $n<=9; $n++)
{
$wd[$n]=$dc[$n]->s;
echo "</br>".$wd[$n];
}

}
?>
</body>
</html>
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