php採集文章圖片不顯示的解決方法:1、依照關鍵字收集百度搜尋結果;2、把採集到的html,依照定義的網域做一次批次轉換即可。
本文操作環境:windows7系統、PHP7.1版、DELL G3電腦
php擷取文章圖片不顯示怎麼辦?
PHP CURL採集百度搜尋結果圖片不顯示問題的解決方法
1.根據關鍵字收集百度搜尋結果
根據關鍵字採集百度搜尋結果,可以使用curl實現,程式碼如下:
<p><?php <br/>function doCurl($url, $data=array(), $header=array(), $timeout=30){<br> $ch = curl_init();<br> curl_setopt($ch, CURLOPT_URL, $url);<br> curl_setopt($ch, CURLOPT_HTTPHEADER, $header);<br> curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);<br> curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);<br> curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);<br> $response = curl_exec($ch);<br> if($error=curl_error($ch)){<br> die($error);<br> }<br> curl_close($ch);<br> return $response;<br>}<br>$wd = '仙剑奇侠传';<br>$url = 'http://www.baidu.com/s?wd='.urlencode($wd);<br>$data = array();<br>$header = array();<br>$response = doCurl($url, $data, $header, 5);<br>echo $response;<br>?><br></p>
輸出後發現有部分圖片不能顯示
2.採集後的圖片不顯示原因分析
直接在百度中搜尋,頁面是可以顯示圖片的。使用firebug查看圖片路徑,發現採集的圖片網域與百度搜尋的圖片網域不同。
採集回傳的圖片網域t11.baidu.com
正常搜尋的圖片網域ss1.baidu.com
#查看採集與正常搜尋的html,發現有個網域轉換的js是不一樣的
採集
<p>var list = {<br> "graph.baidu.com": "http://graph.baidu.com",<br> "t1.baidu.com":"http://t1.baidu.com",<br> "t2.baidu.com":"http://t2.baidu.com",<br> "t3.baidu.com":"http://t3.baidu.com",<br> "t10.baidu.com":"http://t10.baidu.com",<br> "t11.baidu.com":"http://t11.baidu.com",<br> "t12.baidu.com":"http://t12.baidu.com",<br> "i7.baidu.com":"http://i7.baidu.com",<br> "i8.baidu.com":"http://i8.baidu.com",<br> "i9.baidu.com":"http://i9.baidu.com",<br>};<br></p>
正常搜尋
<p>var list = {<br> "graph.baidu.com": "https://sp0.baidu.com/-aYHfD0a2gU2pMbgoY3K",<br> "t1.baidu.com":"https://ss0.baidu.com/6ON1bjeh1BF3odCf",<br> "t2.baidu.com":"https://ss1.baidu.com/6OZ1bjeh1BF3odCf",<br> "t3.baidu.com":"https://ss2.baidu.com/6OV1bjeh1BF3odCf",<br> "t10.baidu.com":"https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq",<br> "t11.baidu.com":"https://ss1.baidu.com/6ONXsjip0QIZ8tyhnq",<br> "t12.baidu.com":"https://ss2.baidu.com/6ONYsjip0QIZ8tyhnq",<br> "i7.baidu.com":"https://ss0.baidu.com/73F1bjeh1BF3odCf",<br> "i8.baidu.com":"https://ss0.baidu.com/73x1bjeh1BF3odCf",<br> "i9.baidu.com":"https://ss0.baidu.com/73t1bjeh1BF3odCf",<br>};<br></p>
因此可以斷定是,百度根據來源位址、IP、header等參數,判斷如果是採集的,則傳回不同的js。
3.採集後圖片不顯示的解決方法
把採集到的html,依照定義的網域做一次批次轉換即可。
<p><?php <br/>function doCurl($url, $data=array(), $header=array(), $timeout=30){<br> $ch = curl_init();<br> curl_setopt($ch, CURLOPT_URL, $url);<br> curl_setopt($ch, CURLOPT_HTTPHEADER, $header);<br> curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);<br> curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);<br> curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);<br> $response = curl_exec($ch);<br> if($error=curl_error($ch)){<br> die($error);<br> }<br> curl_close($ch);<br> return $response;<br>}<br>// 域名转换<br>function cdomain($str){<br> $baidu_domain = '{<br> "http://graph.baidu.com": "https://sp0.baidu.com/-aYHfD0a2gU2pMbgoY3K",<br> "http://p.qiao.baidu.com":"https://sp0.baidu.com/5PoXdTebKgQFm2e88IuM_a",<br> "http://vse.baidu.com":"https://sp3.baidu.com/6qUDsjip0QIZ8tyhnq",<br> "http://hdpreload.baidu.com":"https://sp3.baidu.com/7LAWfjuc_wUI8t7jm9iCKT-xh_",<br> "http://lcr.open.baidu.com":"https://sp2.baidu.com/8LUYsjW91Qh3otqbppnN2DJv",<br> "http://kankan.baidu.com":"https://sp3.baidu.com/7bM1dzeaKgQFm2e88IuM_a",<br> "http://xapp.baidu.com":"https://sp2.baidu.com/yLMWfHSm2Q5IlBGlnYG",<br> "http://dr.dh.baidu.com":"https://sp0.baidu.com/-KZ1aD0a2gU2pMbgoY3K",<br> "http://xiaodu.baidu.com":"https://sp0.baidu.com/yLsHczq6KgQFm2e88IuM_a",<br> "http://sensearch.baidu.com":"https://sp1.baidu.com/5b11fzupBgM18t7jm9iCKT-xh_",<br> "http://s1.bdstatic.com":"https://ss1.bdstatic.com/5eN1bjq8AAUYm2zgoY3K",<br> "http://olime.baidu.com":"https://sp0.baidu.com/8bg4cTva2gU2pMbgoY3K",<br> "http://app.baidu.com":"https://sp2.baidu.com/9_QWsjip0QIZ8tyhnq",<br> "http://i.baidu.com":"https://sp0.baidu.com/74oIbT3kAMgDnd_",<br> "http://c.baidu.com":"https://sp0.baidu.com/9foIbT3kAMgDnd_",<br> "http://sclick.baidu.com":"https://sp0.baidu.com/5bU_dTmfKgQFm2e88IuM_a",<br> "http://nsclick.baidu.com":"https://sp1.baidu.com/8qUJcD3n0sgCo2Kml5_Y_D3",<br> "http://sestat.baidu.com":"https://sp1.baidu.com/5b1ZeDe5KgQFm2e88IuM_a",<br> "http://eclick.baidu.com":"https://sp3.baidu.com/-0U_dTmfKgQFm2e88IuM_a",<br> "http://api.map.baidu.com":"https://sp2.baidu.com/9_Q4sjOpB1gCo2Kml5_Y_D3",<br> "http://ecma.bdimg.com":"https://ss1.bdstatic.com/-0U0bXSm1A5BphGlnYG",<br> "http://ecmb.bdimg.com":"https://ss0.bdstatic.com/-0U0bnSm1A5BphGlnYG",<br> "http://t1.baidu.com":"https://ss0.baidu.com/6ON1bjeh1BF3odCf",<br> "http://t2.baidu.com":"https://ss1.baidu.com/6OZ1bjeh1BF3odCf",<br> "http://t3.baidu.com":"https://ss2.baidu.com/6OV1bjeh1BF3odCf",<br> "http://t10.baidu.com":"https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq",<br> "http://t11.baidu.com":"https://ss1.baidu.com/6ONXsjip0QIZ8tyhnq",<br> "http://t12.baidu.com":"https://ss2.baidu.com/6ONYsjip0QIZ8tyhnq",<br> "http://i7.baidu.com":"https://ss0.baidu.com/73F1bjeh1BF3odCf",<br> "http://i8.baidu.com":"https://ss0.baidu.com/73x1bjeh1BF3odCf",<br> "http://i9.baidu.com":"https://ss0.baidu.com/73t1bjeh1BF3odCf",<br> "http://b1.bdstatic.com":"https://ss0.bdstatic.com/9uN1bjq8AAUYm2zgoY3K",<br> "http://ss.bdimg.com":"https://ss1.bdstatic.com/5aV1bjqh_Q23odCf",<br> "http://opendata.baidu.com":"https://sp0.baidu.com/8aQDcjqpAAV3otqbppnN2DJv",<br> "http://api.open.baidu.com":"https://sp0.baidu.com/9_Q4sjW91Qh3otqbppnN2DJv",<br> "http://tag.baidu.com":"https://sp1.baidu.com/6LMFsjip0QIZ8tyhnq",<br> "http://f3.baidu.com":"https://sp2.baidu.com/-uV1bjeh1BF3odCf",<br> "http://s.share.baidu.com":"https://sp0.baidu.com/5foZdDe71MgCo2Kml5_Y_D3", <br> "http://bdimg.share.baidu.com":"https://ss1.baidu.com/9rA4cT8aBw9FktbgoI7O1ygwehsv",<br> "http://1.su.bdimg.com":"https://ss0.bdstatic.com/k4oZeXSm1A5BphGlnYG",<br> "http://2.su.bdimg.com":"https://ss1.bdstatic.com/kvoZeXSm1A5BphGlnYG",<br> "http://3.su.bdimg.com":"https://ss2.bdstatic.com/kfoZeXSm1A5BphGlnYG",<br> "http://4.su.bdimg.com":"https://ss3.bdstatic.com/lPoZeXSm1A5BphGlnYG",<br> "http://5.su.bdimg.com":"https://ss0.bdstatic.com/l4oZeXSm1A5BphGlnYG",<br> "http://6.su.bdimg.com":"https://ss1.bdstatic.com/lvoZeXSm1A5BphGlnYG",<br> "http://7.su.bdimg.com":"https://ss2.bdstatic.com/lfoZeXSm1A5BphGlnYG",<br> "http://8.su.bdimg.com":"https://ss3.bdstatic.com/iPoZeXSm1A5BphGlnYG"<br> }';<br> $domain = json_decode($baidu_domain, true);<br> foreach($domain as $k=>$v){<br> $str = str_replace($k, $v, $str);<br> }<br> return $str;<br>}<br>$wd = '仙剑奇侠传';<br>$url = 'http://www.baidu.com/s?wd='.urlencode($wd);<br>$data = array();<br>$header = array();<br>$response = doCurl($url, $data, $header, 5);<br>echo cdomain($response); // 调用域名转换<br>?><br></p>
增加網域轉換後,所有的圖片都可以正常顯示。
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