PHP CURL采集百度搜寻结果图片不显示问题的解决方法

《PHP实战：PHP CURL采集百度搜寻结果图片不显示问题的解决方法》要点：
本文介绍了PHP实战：PHP CURL采集百度搜寻结果图片不显示问题的解决方法，希望对您有用。如果有疑问，可以联系我们。

PHP实例1.根据关键字采集百度搜寻结果

PHP实例根据关键字采集百度搜寻结果,可以使用curl实现,代码如下：

PHP实例
<?PHP
function doCurl($url,$data=array(),$header=array(),$timeout=30){
  $ch = curl_init();
  curl_setopt($ch,CURLOPT_URL,$url);
  curl_setopt($ch,CURLOPT_HTTPHEADER,$header);
  curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
  curl_setopt($ch,CURLOPT_FOLLOWLOCATION,CURLOPT_TIMEOUT,$timeout);
  $response = curl_exec($ch);
  if($error=curl_error($ch)){
    die($error);
  }
  curl_close($ch);
  return $response;
}
$wd = '仙剑奇侠传';
$url = 'http://www.baidu.com/s?wd='.urlencode($wd);
$data = array();
$header = array();
$response = doCurl($url,$data,$header,5);
echo $response;
?>

PHP实例输出后发现有部分图片不能显示

PHP实例

 

PHP实例2.采集后的图片不显示原因分析

PHP实例直接在百度中搜寻,页面是可以显示图片的.使用firebug查看图片路径,发现采集的图片域名与在百度搜寻的图片域名不同.

PHP实例采集返回的图片域名 t11.baidu.com

PHP实例

 

PHP实例正常搜寻的图片域名 ss1.baidu.com

PHP实例

 

PHP实例查看采集与正常搜寻的html,发现有个域名转换的js是不一样的

PHP实例采集

PHP实例
var list = {
    "graph.baidu.com": "http://graph.baidu.com","t1.baidu.com":"http://t1.baidu.com","t2.baidu.com":"http://t2.baidu.com","t3.baidu.com":"http://t3.baidu.com","t10.baidu.com":"http://t10.baidu.com","t11.baidu.com":"http://t11.baidu.com","t12.baidu.com":"http://t12.baidu.com","i7.baidu.com":"http://i7.baidu.com","i8.baidu.com":"http://i8.baidu.com","i9.baidu.com":"http://i9.baidu.com",};

PHP实例正常搜寻

PHP实例
var list = {
    "graph.baidu.com": "https://sp0.baidu.com/-aYHfD0a2gU2pMbgoY3K","t1.baidu.com":"https://ss0.baidu.com/6ON1bjeh1BF3odCf","t2.baidu.com":"https://ss1.baidu.com/6OZ1bjeh1BF3odCf","t3.baidu.com":"https://ss2.baidu.com/6OV1bjeh1BF3odCf","t10.baidu.com":"https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq","t11.baidu.com":"https://ss1.baidu.com/6ONXsjip0QIZ8tyhnq","t12.baidu.com":"https://ss2.baidu.com/6ONYsjip0QIZ8tyhnq","i7.baidu.com":"https://ss0.baidu.com/73F1bjeh1BF3odCf","i8.baidu.com":"https://ss0.baidu.com/73x1bjeh1BF3odCf","i9.baidu.com":"https://ss0.baidu.com/73t1bjeh1BF3odCf",};

PHP实例因此可以断定是,百度根据来源地址、IP、header等参数,判断如果是采集的,则返回不同的js.

PHP实例3.采集后图片不显示的解决方法

PHP实例把采集到的html,根据定义的域名做一次批量转换即可.

PHP实例
<?PHP
function doCurl($url,$timeout);
  $response = curl_exec($ch);
  if($error=curl_error($ch)){
    die($error);
  }
  curl_close($ch);
  return $response;
}
// 域名转换
function cdomain($str){
  $baidu_domain = '{
    "http://graph.baidu.com": "https://sp0.baidu.com/-aYHfD0a2gU2pMbgoY3K","http://p.qiao.baidu.com":"https://sp0.baidu.com/5PoXdTebKgQFm2e88IuM_a","http://vse.baidu.com":"https://sp3.baidu.com/6qUDsjip0QIZ8tyhnq","http://hdpreload.baidu.com":"https://sp3.baidu.com/7LAWfjuc_wUI8t7jm9iCKT-xh_","http://lcr.open.baidu.com":"https://sp2.baidu.com/8LUYsjW91Qh3otqbppnN2DJv","http://kankan.baidu.com":"https://sp3.baidu.com/7bM1dzeaKgQFm2e88IuM_a","http://xapp.baidu.com":"https://sp2.baidu.com/yLMWfHSm2Q5IlBGlnYG","http://dr.dh.baidu.com":"https://sp0.baidu.com/-KZ1aD0a2gU2pMbgoY3K","http://xiaodu.baidu.com":"https://sp0.baidu.com/yLsHczq6KgQFm2e88IuM_a","http://sensearch.baidu.com":"https://sp1.baidu.com/5b11fzupBgM18t7jm9iCKT-xh_","http://s1.bdstatic.com":"https://ss1.bdstatic.com/5eN1bjq8AAUYm2zgoY3K","http://olime.baidu.com":"https://sp0.baidu.com/8bg4cTva2gU2pMbgoY3K","http://app.baidu.com":"https://sp2.baidu.com/9_QWsjip0QIZ8tyhnq","http://i.baidu.com":"https://sp0.baidu.com/74oIbT3kAMgDnd_","http://c.baidu.com":"https://sp0.baidu.com/9foIbT3kAMgDnd_","http://sclick.baidu.com":"https://sp0.baidu.com/5bU_dTmfKgQFm2e88IuM_a","http://nsclick.baidu.com":"https://sp1.baidu.com/8qUJcD3n0sgCo2Kml5_Y_D3","http://sestat.baidu.com":"https://sp1.baidu.com/5b1ZeDe5KgQFm2e88IuM_a","http://eclick.baidu.com":"https://sp3.baidu.com/-0U_dTmfKgQFm2e88IuM_a","http://api.map.baidu.com":"https://sp2.baidu.com/9_Q4sjOpB1gCo2Kml5_Y_D3","http://ecma.bdimg.com":"https://ss1.bdstatic.com/-0U0bXSm1A5BphGlnYG","http://ecmb.bdimg.com":"https://ss0.bdstatic.com/-0U0bnSm1A5BphGlnYG","http://t1.baidu.com":"https://ss0.baidu.com/6ON1bjeh1BF3odCf","http://t2.baidu.com":"https://ss1.baidu.com/6OZ1bjeh1BF3odCf","http://t3.baidu.com":"https://ss2.baidu.com/6OV1bjeh1BF3odCf","http://t10.baidu.com":"https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq","http://t11.baidu.com":"https://ss1.baidu.com/6ONXsjip0QIZ8tyhnq","http://t12.baidu.com":"https://ss2.baidu.com/6ONYsjip0QIZ8tyhnq","http://i7.baidu.com":"https://ss0.baidu.com/73F1bjeh1BF3odCf","http://i8.baidu.com":"https://ss0.baidu.com/73x1bjeh1BF3odCf","http://i9.baidu.com":"https://ss0.baidu.com/73t1bjeh1BF3odCf","http://b1.bdstatic.com":"https://ss0.bdstatic.com/9uN1bjq8AAUYm2zgoY3K","http://ss.bdimg.com":"https://ss1.bdstatic.com/5aV1bjqh_Q23odCf","http://opendata.baidu.com":"https://sp0.baidu.com/8aQDcjqpAAV3otqbppnN2DJv","http://api.open.baidu.com":"https://sp0.baidu.com/9_Q4sjW91Qh3otqbppnN2DJv","http://tag.baidu.com":"https://sp1.baidu.com/6LMFsjip0QIZ8tyhnq","http://f3.baidu.com":"https://sp2.baidu.com/-uV1bjeh1BF3odCf","http://s.share.baidu.com":"https://sp0.baidu.com/5foZdDe71MgCo2Kml5_Y_D3","http://bdimg.share.baidu.com":"https://ss1.baidu.com/9rA4cT8aBw9FktbgoI7O1ygwehsv","http://1.su.bdimg.com":"https://ss0.bdstatic.com/k4oZeXSm1A5BphGlnYG","http://2.su.bdimg.com":"https://ss1.bdstatic.com/kvoZeXSm1A5BphGlnYG","http://3.su.bdimg.com":"https://ss2.bdstatic.com/kfoZeXSm1A5BphGlnYG","http://4.su.bdimg.com":"https://ss3.bdstatic.com/lPoZeXSm1A5BphGlnYG","http://5.su.bdimg.com":"https://ss0.bdstatic.com/l4oZeXSm1A5BphGlnYG","http://6.su.bdimg.com":"https://ss1.bdstatic.com/lvoZeXSm1A5BphGlnYG","http://7.su.bdimg.com":"https://ss2.bdstatic.com/lfoZeXSm1A5BphGlnYG","http://8.su.bdimg.com":"https://ss3.bdstatic.com/iPoZeXSm1A5BphGlnYG"
  }';
  $domain = json_decode($baidu_domain,true);
  foreach($domain as $k=>$v){
    $str = str_replace($k,$v,$str);
  }
  return $str;
}
$wd = '仙剑奇侠传';
$url = 'http://www.baidu.com/s?wd='.urlencode($wd);
$data = array();
$header = array();
$response = doCurl($url,5);
echo cdomain($response); // 调用域名转换
?>

PHP实例增加域名转换后,所有的图片都可以正常显示.

PHP实例

PHP实例以上所述是小编给大家介绍的PHP CURL采集百度搜寻结果图片不显示问题的解决方法,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的.在此也非常感谢大家对编程之家网站的支持!