提取google,baidu等搜索网页内容
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2022-05-15 22:25:43
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在本地上没什么问题,测试结果在附图里.
1. [代码][PHP]代码
<html> <head> <title>Search test</title> </head> <body> <p> <center> <form method="get" action="index.php" enctype="utf-8"> <input type="text" name="keywords" size="30"> <input type="hidden" name="pn" value="0"/> <input type="submit" value="Search"><br/> <input type="radio" name="engine" value="google" />Google <input type="radio" name="engine" value="baidu"/>Baidu <input type="radio" name="engine" value="php"/>php <input type="radio" name="engine" value="mysql"/>mysql <input type="radio" name="engine" value="java"/>Java <input type="radio" name="engine" value="html"/>html </form> </center> </p> <?php $keywords=$_GET['keywords']; $pn=$_GET['pn']; $engine=$_GET['engine']; if(empty($keywords)) die('Sorry,no keywords.'); //添加$keyword中加号 $keywords=str_replace(' ','+',$keywords); //支持特殊字符 $keywords=urlencode($keywords); /** *切换搜索引擎 */ if(($engine=='google')||(empty($engine))||($engine=='html')){ header("Content-type:text/html;charset=big5");//加个头 require('google.sty'); //temp variables //$keywords='google pig'; //$pn=20; if(($engine=='html')){ $keywords=$keywords.'+site:www.w3schools.com'; } $url='http://www.google.com.hk/search?q='.$keywords.'&start='.$pn; //echo $url; //$contents=file_get_contents($url); //try fopen() with google //$fp=fopen($url,'r'); //while(!feof($fp)){ //$contents=$contents.fgets($fp,999);} //try with curl $contents=get_data($url); $start=strpos($contents,'<p id="ires">'); //echo $start.'start<br/>'; $end=strpos($contents,'<p id="foot"'); //echo $end.'end'; $len=$end-$start; //echo $len.'lenght<br/>'; $inf=substr($contents,$start,$len); //过滤掉google伪链接,替换搜索链接,尾部链接 $inf=str_replace('/url?q=','',$inf); $inf=str_replace('search?q=','index.php?engine=google&keywords=',$inf); //过滤google js带来的无用后缀 //$pattern='&sa=([a-z0-9_\-]){1}&ei=([a-z0-9_\-]){18,22}&ved=([a-z0-9_\-]){9,13}&usg=([a-z0-9_\-]){34}'; $pattern2='&sa=([a-z0-9_\-]){1}&ei=([a-z0-9_\-]){22}&ved=([a-z0-9_\-]){9,13}&usg=([a-z0-9_\-]){34}'; //test regular expression below $inf=eregi_replace($pattern2,' ',$inf); //$write='test writing ability'; //file_put_contents('/home/mageia/search_test',$inf); //替换类似内容链接无法打开链接 $inf=str_replace('/search?','http://www.google.com/search?',$inf); //替换google对链接的转换 $inf=urldecode($inf); echo $inf; $guid='<p id="page"><a href="?keywords='.$keywords.'&pn=0&engine=google">1</a> <a href="?keywords='.$keywords.'&pn=10&engine=google">2</a> <a href="?keywords='.$keywords.'&pn=20&engine=google">3</a> <a href="?keywords='.$keywords.'&pn=30&engine=google">4</a> <a href="?keywords='.$keywords.'&pn=40&engine=google">5</a> <a href="?keywords='.$keywords.'&pn=50&engine=google">6</a> <a href="?keywords='.$keywords.'&pn=60&engine=google">7</a> <a href="?keywords='.$keywords.'&pn=70&engine=google">8</a> <a href="?keywords='.$keywords.'&pn=80&engine=google">9</a> <a href="?keywords='.$keywords.'&pn=90&engine=google">10</a> <a href="?keywords='.$keywords.'&pn=100&engine=google">11</a> <a href="?keywords='.$keywords.'&pn=110&engine=google">12</a> </p>'; //$currentpage当前所在页 $currentpage=$pn/10+1; $currentpos=strpos($guid,$currentpage.'<'); //$guid为最低下的导航页内容 $guid=substr_replace($guid,'O',$currentpos,($currentpage<10)?1:2); echo $guid; } elseif($engine=='baidu'){ header("Content-type:text/html;charset=utf-8");//加个头 require('baidu.sty'); $url='http://www.baidu.com/s?wd='.$keywords.'&pn='.$pn; //please check the url //echo $url; //$contents=file_get_contents($url); //try with curl $contents=get_data($url); //echo $contents; $start=strpos($contents,'<p id="container">'); //echo $start.'<br/>'; //real start position $start=strpos($contents,'</table>',$start); //real end position $end=strpos($contents,'<p id="page">',$start); $len=$end-$start; //echo $end.'<br/>'; $inf=substr($contents,$start,$len); //替换一些失效链接 $inf=str_replace('/s?wd=','index.php?engine=baidu&keywords=',$inf); echo $inf; $guid='<p id="page"><a href="?keywords='.$keywords.'&pn=0&engine=baidu">1</a> <a href="?keywords='.$keywords.'&pn=10&engine=baidu">2</a> <a href="?keywords='.$keywords.'&pn=20&engine=baidu">3</a> <a href="?keywords='.$keywords.'&pn=30&engine=baidu">4</a> <a href="?keywords='.$keywords.'&pn=40&engine=baidu">5</a> <a href="?keywords='.$keywords.'&pn=50&engine=baidu">6</a> <a href="?keywords='.$keywords.'&pn=60&engine=baidu">7</a> <a href="?keywords='.$keywords.'&pn=70&engine=baidu">8</a> <a href="?keywords='.$keywords.'&pn=80&engine=baidu">9</a> <a href="?keywords='.$keywords.'&pn=90&engine=baidu">10</a> </p>'; //$currentpage当前所在页 $currentpage=$pn/10+1; $currentpos=strpos($guid,$currentpage.'<'); //$guid为最低下的导航页内容 $guid=substr_replace($guid,'O',$currentpos,($currentpage<10)?1:2); echo $guid; } elseif($engine=='php'){ /*it will only search php functions within http://www.php.cn/ . If the function name you *give does not exist, it returns nothing but a empty page. */ require('php_print.css'); require('php_site.css'); require('php_mirror.css'); $url='http://php.net/search.php?&pattern='.$keywords.'&show=quickref'; //try with file_get_contents,failed remote in us server $phpcontents=file_get_contents($url); //try with curl,failed local //$phpcontents=get_data($url); //echo $phpcontents; $start=strpos($phpcontents,'<p id="content"'); //echo $start.'<br/>'; //actual start position $start+=8; //echo $start.'<br/>'; $start=strpos($phpcontents,'<p id=',$start); //echo $start; $end=strpos($phpcontents,'<p id="footnav">'); $phpinf=substr($phpcontents,$start,$end-$start); echo $phpinf; } elseif(($engine=='mysql')||($engine=='java')){ header("Content-type:text/html;charset=utf-8");//加个头 require('search-core.sty'); require('search.sty'); require('results.sty'); require('grids-ses.sty'); require('tabview-ses.sty'); require('treeview-ses.sty'); //enable page links to work $pgstart=$pn+1; $pgend=$start+9; //url中不能有回车符 if($engine=='mysql'){ $url='http://search.oracle.com/search/search?&q='.$keywords.'&group=MySQL&search_startnum='.$pgstart.'&search_endnum='.$pgend.'&num=10';} else{ $url='http://search.oracle.com/search/search?search_p_main_operator=all&group=Documentation&q='.$keywords.'+url:/javase'.'&search_startnum='.$pgstart.'&search_endnum='.$pgend.'&num=10'; } //echo $url; //$mysqlcontents=file_get_contents($url); //try with curl $mysqlcontents=get_data($url); $start=strpos($mysqlcontents,'<p id="bd">'); $end=strpos($mysqlcontents,'<p id="ft">'); $mysqlinf=substr($mysqlcontents,$start,$end-$start); echo $mysqlinf; if($engine=='mysql'){ $guid='<p id="page"><a href="?keywords='.$keywords.'&pn=0&engine=mysql">1</a> <a href="?keywords='.$keywords.'&pn=10&engine=mysql">2</a> <a href="?keywords='.$keywords.'&pn=20&engine=mysql">3</a> <a href="?keywords='.$keywords.'&pn=30&engine=mysql">4</a> <a href="?keywords='.$keywords.'&pn=40&engine=mysql">5</a> </p>'; }else{ $guid='<p id="page"><a href="?keywords='.$keywords.'&pn=0&engine=java">1</a> <a href="?keywords='.$keywords.'&pn=10&engine=java">2</a> <a href="?keywords='.$keywords.'&pn=20&engine=java">3</a> <a href="?keywords='.$keywords.'&pn=30&engine=java">4</a> <a href="?keywords='.$keywords.'&pn=40&engine=java">5</a> </p>'; } $currentpage=$pn/10+1; $currentpos=strpos($guid,$currentpage.'<'); //$guid为最低下的导航页内容 $guid=substr_replace($guid,'O',$currentpos,($currentpage<10)?1:2); echo $guid; } else{ echo 'Sorry,This search engine will be supported soon.'; } /* gets the data from a URL */ function get_data($url) { $ch = curl_init(); $timeout = 5; curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout); $data = curl_exec($ch); curl_close($ch); return $data; } ?> </body> </html>
2. [图片]屏幕截图.png
3. [图片] 屏幕截图.png
4. [图片] 屏幕截图.png
5. [图片] 屏幕截图.png
6. 屏幕截图.png
7. [图片] 屏幕截图.png
8. [文件] css.zip
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