使用php的curl根据关键词爬取百度搜索结果页
我想实现的是每次根据给出的关键词搜索百度结果页,比如百度搜索结果是这样的,百度推广内容加正文:
而我使用curl爬取结果是这样的:
也就是说每次爬取结果都是无法爬取到百度推广的内容。请问哪位大师能指导一下,鄙人刚入门,望各位不吝指导。先谢过了。
其中php抓取代码如下:
<br /><?php<br />$url = "http://www.baidu.com/s?wd=生命动力";<br />// 构造包头,模拟浏览器请求<br />$header = array (<br /> "Host:www.baidu.com",<br /> "Content-Type:application/x-www-form-urlencoded",//post请求<br /> "Connection: keep-alive",<br /> 'Referer:http://www.baidu.com',<br /> 'User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; BIDUBrowser 2.6)'<br />);<br />$ch = curl_init ();<br />curl_setopt ( $ch, CURLOPT_URL, $url );<br />curl_setopt ( $ch, CURLOPT_HTTPHEADER, $header );<br />curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );<br />// 执行<br />$content = curl_exec ( $ch );<br />if ($content == FALSE) {<br /> echo "error:" . curl_error ( $ch );<br />}<br />// 关闭<br />curl_close ( $ch );<br /><br />//输出结果<br />echo $content;<br />?><br />
<br />$url = "http://www.baidu.com/s?wd=生命动力";<br /><br />$header = array (<br /> 'User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36'<br />);<br />$ch = curl_init ();<br />curl_setopt ( $ch, CURLOPT_URL, $url );<br />curl_setopt ( $ch, CURLOPT_HTTPHEADER, $header );<br />curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );<br />// 执行<br />$content = curl_exec ( $ch );<br />if ($content == FALSE) {<br /> echo "error:" . curl_error ( $ch );<br />}<br />// 关闭<br />curl_close ( $ch );<br /> <br />//输出结果<br />echo $content;<br />