欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  后端开发

PHP抓取百度搜索结果页面的【相关搜索词】并存储

程序员文章站 2022-03-15 12:43:45
...
这篇文章介绍的内容是关于PHP抓取百度搜索结果页面的【相关搜索词】并存储,有着一定的参考价值,现在分享给大家,有需要的朋友可以参考一下

一、百度搜索关键词【知了壳公司转让】

PHP抓取百度搜索结果页面的【相关搜索词】并存储

【知了壳公司转让】搜索链接
https://www.baidu.com/s?wd=%E7%9F%A5%E4%BA%86%E5%A3%B3%E5%85%AC%E5%8F%B8%E8%BD%AC%E8%AE%A9

PHP抓取百度搜索结果页面的【相关搜索词】并存储

**搜索结果部分源代码**

<p id="rs"><p class="tt">相关搜索</p><table cellpadding="0"><tbody><tr><th>
<a href="/s?wd=%E5%85%AC%E5%8F%B8%E8%BD%AC%E8%AE%A9%E6%B5%81%E7%A8%8B%E7%9F%A5%E4%BA%86%E5%A3%B3&rsp=0&f=1&oq=%E7%9F%A5%E4%BA%86%E5%A3%B3%E5%85%AC%E5%8F%B8%E8%BD%AC%E8%AE%A9&tn=baiduhome_pg&ie=utf-8&rsv_idx=2&rsv_pq=88c7804a0000c417&rsv_t=b5f3JkJIsj6Nkp61K%2BmmVGeev7UP95o1HSJTUoIS2xV4SsmZxvOoVf%2BAZaVoihB%2BT3bg&rqlang=cn&rsv_ers=xn0&rs_src=0&rsv_pq=88c7804a0000c417&rsv_t=b5f3JkJIsj6Nkp61K%2BmmVGeev7UP95o1HSJTUoIS2xV4SsmZxvOoVf%2BAZaVoihB%2BT3bg">公司转让流程知了壳</a></th>
.....
.....
<th><a href="/s?wd=%E7%9F%A5%E4%BA%86%E5%A3%B3%E5%85%AC%E5%8F%B8%E6%B3%A8%E5%86%8C&rsp=8&f=1&oq=%E7%9F%A5%E4%BA%86%E5%A3%B3%E5%85%AC%E5%8F%B8%E8%BD%AC%E8%AE%A9&tn=baiduhome_pg&ie=utf-8&rsv_idx=2&rsv_pq=88c7804a0000c417&rsv_t=b5f3JkJIsj6Nkp61K%2BmmVGeev7UP95o1HSJTUoIS2xV4SsmZxvOoVf%2BAZaVoihB%2BT3bg&rqlang=cn&rsv_ers=xn0&rs_src=0&rsv_pq=88c7804a0000c417&rsv_t=b5f3JkJIsj6Nkp61K%2BmmVGeev7UP95o1HSJTUoIS2xV4SsmZxvOoVf%2BAZaVoihB%2BT3bg">知了壳公司注册</a></th></tr></tbody></table></p>


二、抓取并保存本地

PHP抓取百度搜索结果页面的【相关搜索词】并存储

源代码

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;
        // 构造包头,模拟浏览器请求
        $header = array (
            "Host:www.baidu.com",
            "Content-Type:application/x-www-form-urlencoded",//post请求
            "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 );
        //输出结果echo $content;
        $this->o_String->string=$content;
        $s_begin='<p id="rs">';
        $s_end='</p>';
        $summary=$this->o_String->getPart($s_begin,$s_end);
        $s_begin='<p class="tt">相关搜索</p><table cellpadding="0"><tr><th>';
        $s_end='</th></tr></table></p>';
        $content=$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); //获取搜索内容
    $pat = '/<a(.*?)href="(.*?)"(.*?)>(.*?)<\/a>/i';     
    preg_match_all($pat, $str, $m);    
    //print_r($m[4]); 链接文字
    $con = implode(",", $m[4]);
    //生成文件夹
    $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;
    }
}
?>

相关推荐:

php抓取页面乱码解析

php抓取网页匹配内容模板

以上就是PHP抓取百度搜索结果页面的【相关搜索词】并存储的详细内容,更多请关注其它相关文章!