抓取javascript數組

Question

我在抓取一個網站http://www.weather.bm/radarMobile.asp，Fatherstorm gave me a great solution時遇到了問題，但它在開始時間和圖像數量方面有一些小錯誤，有時會給出9或10，但代碼設置爲10。

另外一個人（marcog）給我this answer：

「，通過含radarFileNames =新的陣列將返回該行的行一個簡單的搜索然後你就可以提取網址有兩個preg_split() s：首先在\(|\)上，然後將第二個標記拆分爲', '。最後，將前綴http://www.weather.bm/添加到URL中。「

我希望如果有人能告訴我他正在談論的代碼。我喜歡學習這種東西，但我沒有人教我。我希望你們能幫助

JavaScript數組：

radarFileNames = new Arra(  
'images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1446.jpg',  
'images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1456.jpg',  
'images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1506.jpg',  
'images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1516.jpg',  
'images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1526.jpg',  
'images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1536.jpg',  
'images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1546.jpg',  
'images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1556.jpg',  
'images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1606.jpg' 

也將有可能輸出UL LI /李/ UL裏面的IMG它有它自己的類（UL類鋰類）

林也用簡單的HTML DOM解析器，但使用fatherstorm代碼 http://j2sdesign.com/rgw/article/20101222/NEWS01/712229951/0/example/r1.php

樣品我不能只加載的圖像是outputed

這裏的圖片10

我從fatherstorm

?php 
     $localOffset = "+2 Hours"; //change this to your local offset from the image times you need. for me it's 1 hours..... 
     $start = strtotime("-100 Minutes " . $localOffset); // go back 90 minutes (The limit of the available images) 
     $start = ($start - ($start % (600)) + (60 * 6)); //go to the next earlier 6 minute mark (all images appear to be at the 6 minute mark)) 
     for ($x = 1; $x <= 10; $x++) { 
      $DateTime = date("Y-m-d-Hi", $start); // set the image time we want. 
      $fName = ("http://www.weather.bm/images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-$DateTime.jpg"); // set the filename 
      echo" <center>$DateTime</center> <img class='radarImg' src='$fName' alt='$fName' title='$fName'/><br/."; // echo (or add to a stack or variable...) your image node 
      $start+= (600); //add 10 minutes 


     } 
     ? 

馬里奧代碼你的意思 這樣的：

<?php 
     $localOffset = "+2 Hours"; //change this to your local offset from the image times you need. for me it's 1 hours..... 
     $start = strtotime("-100 Minutes " . $localOffset); // go back 90 minutes (The limit of the available images) 
     $start = ($start - ($start % (600)) + (60 * 6)); //go to the next earlier 6 minute mark (all images appear to be at the 6 minute mark)) 
     for ($x = 1; $x <= 10; $x++) { 
      $DateTime = date("Y-m-d-Hi", $start); // set the image time we want. 
      $fName = ("http://www.weather.bm/images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-$DateTime.jpg"); // set the filename 
      echo" <center>$DateTime</center> <img class='radarImg' src='$fName' alt='$fName' title='$fName'/><br/."; // echo (or add to a stack or variable...) your image node 
      $start+= (600); //add 10 minutes 
     $html = file_get_contents('http://www.weather.bm/radarMobile.asp'); preg_match('/radarFileNames = new Array\((.+?)\);/ims', $html, $m); $files = explode(",", $m[1]); 

     } 
     ?> 

Answer 1

試試這個：

//not tested 
var len=radarFileNames.length, links=''; 

for(var i=0; i<len; i++) { 
    var links = links + '<a href="radarFileNames[i]">'+radarFileNames[i] + '</a>'; 
} 

document.getElementById("some_id").innerHTML = links; 

Answer 2

閱讀PHP手冊上的正則表達式。在這種情況下，它很簡單：

$html = file_get_contents('http://www.weather.bm/radarMobile.asp'); 
preg_match('/radarFileNames = new Array\((.+?)\);/ims', $html, $m); 
$files = explode(",", $m[1]); 
// then output <img>s 

explode（）比preg_split更容易。但之後需要在陣列中的每個文件名上有trim()，並且需要第二個trim($filename, "'")來擺脫封閉引號。