本文實例講述了PHP實現抓取百度搜索結果頁面【相關搜索詞】并存儲到txt文件。分享給大家供大家參考，具體如下：
一、百度搜索關鍵詞【腳本之家】
【腳本之家】搜索鏈接
https://www.baidu.com/s?ie=utf-8f=8rsv_bp=0rsv_idx=1tn=baiduwd=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6rsv_pq=ab33cfeb000086a2rsv_t=7c65vT3KzHCNfGYOIn%2FDSS%2BOQUiCycaspxWzSOBfkHYpgRIPKMI74WIi8K8rqlang=cnrsv_enter=1rsv_sug3=1
搜索結果部分源代碼：
div id="rs">div class="tt">相關搜索/div>table cellpadding="0">tbody>tr>th>a href="/s?wd=%E6%B8%B8%E6%88%8F%E8%84%9A%E6%9C%AC%E4%B8%80%E8%88%AC%E9%83%BD%E5%9C%A8%E5%93%AA%E6%89%BErsf=4562rsp=0f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM" rel="external nofollow" >游戲腳本一般都在哪找/a>/th>td>/td>th>a href="/s?wd=%E8%84%9A%E6%9C%AC%E6%80%8E%E4%B9%88%E5%86%99rsf=4562rsp=1f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM" rel="external nofollow" >腳本怎么寫/a>/th>td>/td>th>a href="/s?wd=%E8%84%9A%E6%9C%AC%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9Drsf=4562rsp=2f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM" rel="external nofollow" >腳本是什么意思/a>/th>/tr>tr>th>a href="/s?wd=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6apprsf=4562rsp=3f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM" rel="external nofollow" >腳本之家app/a>/th>td>/td>th>a href="/s?wd=%E6%89%8B%E6%9C%BA%E8%84%9A%E6%9C%AC%E5%88%B6%E4%BD%9Crsf=4562rsp=4f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM" rel="external nofollow" >手機腳本制作/a>/th>td>/td>th>a href="/s?wd=%E6%89%8B%E6%9C%BA%E8%84%9A%E6%9C%AC%E5%A4%A7%E5%85%A8rsf=4562rsp=5f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM" rel="external nofollow" >手機腳本大全/a>/th>/tr>tr>th>a href="/s?wd=%E8%84%9A%E6%9C%AC%E6%B8%B8%E6%88%8F%E5%88%B6%E4%BD%9C%E5%A4%A7%E5%B8%88rsf=4562rsp=6f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM" rel="external nofollow" >腳本游戲制作大師/a>/th>td>/td>th>a href="/s?wd=%E6%B8%B8%E6%88%8F%E8%84%9A%E6%9C%AC%E5%88%B6%E4%BD%9C%E6%95%99%E7%A8%8Brsf=4562rsp=7f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM" rel="external nofollow" >游戲腳本制作教程/a>/th>td>/td>th>a href="/s?wd=%E8%84%9A%E6%9C%AC%E7%B2%BE%E7%81%B5rsf=4562rsp=8f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM" rel="external nofollow" >腳本精靈/a>/th>/tr>/tbody>/table>/div>
二、抓取并保存本地
源代碼
index.php：
form action="index.php" method="post">
input name="q" type="text" />
input type="submit" value="Get Keywords" />
/form>
?php
header('Content-Type:text/html;charset=gbk');
class ComBaike{
private $o_String=NULL;
public function __construct(){
include('cls.StringEx.php');
$this->o_String=new StringEx();
}
public function getItem($word){
$url = "http://www.baidu.com/s?wd=".$word;
// 構造包頭，模擬瀏覽器請求
$header = array (
"Host:www.baidu.com",
"Content-Type:application/x-www-form-urlencoded",//post請求
"Connection: keep-alive",
'Referer:http://www.baidu.com',
'User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; BIDUBrowser 2.6)'
);
$ch = curl_init ();
curl_setopt ( $ch, CURLOPT_URL, $url );
curl_setopt ( $ch, CURLOPT_HTTPHEADER, $header );
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );
$content = curl_exec ( $ch );
if ($content == FALSE) {
echo "error:" . curl_error ( $ch );
}
curl_close ( $ch );
//輸出結果echo $content;
$this->o_String->string=$content;
$s_begin='div id="rs">';
$s_end='/div>';
$summary=$this->o_String->getPart($s_begin,$s_end);
$s_begin='div class="tt">相關搜索/div>table cellpadding="0">tr>th>';
$s_end='/th>/tr>/table>/div>';
$content=$this->o_String->getPart($s_begin,$s_end);
return $content;
}
public function __destruct(){
unset($this->o_String);
}
}
if($_POST){
$com = new ComBaike();
$q = $_POST['q'];
$str = $com->getItem($q); //獲取搜索內容
$pat = '/a(.*?)href="(.*?)" rel="external nofollow" (.*?)>(.*?)\/a>/i';
preg_match_all($pat, $str, $m);
//print_r($m[4]); 鏈接文字
$con = implode(",", $m[4]);
//生成文件夾
$dates = date("Ymd");
$path="./Search/".$dates."/";
if(!is_dir($path)){
mkdir($path,0777,true);
}
//生成文件
$file = fopen($path.iconv("UTF-8","GBK",$q).".txt",'w');
if(fwrite($file,$con)){
echo $con;
echo 'script>alert("success")/script>';
}else{
echo 'script>alert("error")/script>';
}
fclose($file);
}
?>
cls.StringEx.php：
?php
header('Content-Type: text/html; charset=UTF-8');
class StringEx{
public $string='';
public function __construct($string=''){
$this->string=$string;
}
public function pregGetPart($s_begin,$s_end){
$s_begin==preg_quote($s_begin);
$s_begin=str_replace('/','\/',$s_begin);
$s_end=preg_quote($s_end);
$s_end=str_replace('/','\/',$s_end);
$pattern='/'.$s_begin.'(.*?)'.$s_end.'/';
$result=preg_match($pattern,$this->string,$a_match);
if(!$result){
return $result;
}else{
return isset($a_match[1])?$a_match[1]:'';
}
}
public function strstrGetPart($s_begin,$s_end){
$string=strstr($this->string,$s_begin);
$string=strstr($string,$s_end,true);
$string=str_replace($s_begin,'',$string);
$string=str_replace($s_end,'',$string);
return $string;
}
public function getPart($s_begin,$s_end){
$result=$this->pregGetPart($s_begin,$s_end);
if(!$result){
$result=$this->strstrGetPart($s_begin,$s_end);
}
return $result;
}
}
?>
更多關于PHP相關內容感興趣的讀者可查看本站專題：《php curl用法總結》、《PHP網絡編程技巧總結》、《PHP數組(Array)操作技巧大全》、《php字符串(string)用法總結》、《PHP數據結構與算法教程》及《PHP中json格式數據操作技巧匯總》
希望本文所述對大家PHP程序設計有所幫助。
您可能感興趣的文章:- 利用PHP抓取百度閱讀的方法示例
- PHP網頁抓取之抓取百度貼吧郵箱數據代碼分享
- php下通過curl抓取yahoo boss 搜索結果的實現代碼
- PHP抓取淘寶商品的用戶曬單評論+圖片+搜索商品列表實例
- PHP統計nginx訪問日志中的搜索引擎抓取404鏈接頁面路徑
- PHP實現采集抓取淘寶網單個商品信息
- PHP的cURL庫功能簡介 抓取網頁、POST數據及其他
