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La meilleure façon d'analyser les balises HTML java script

2010-05-12 3 views

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2

Je suppose que vous voulez analyser un document HTML en utilisant PHP. Je vous suggère de lire sur le http://www.php.net/manual/en/book.dom.php

Voici un exemple fourni par PHP Pro

<?php 

$html = ' 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" dir="ltr"> 
<head> 
<title>PHPRO.ORG</title> 
</head> 
<body> 
<h2>Forecast for Saturday</h2> 
<!-- Issued at 0828 UTC Friday 23 May 2008 --> 
<table border="0" summary="Capital Cities Precis Forecast"> 
    <tbody> 
     <tr> 
     <td><a href="/products/IDN10064.shtml" title="Link to Sydney forecast">Sydney</a></td> 
     <td title="Maximum temperature in degrees Celsius" class="max alignright">19&deg;</td> 
     <td>Fine. Mostly sunny.</td> 
     </tr> 

     <tr> 
     <td><a href="/products/IDV10450.shtml" title="Link to Melbourne forecast">Melbourne</a></td> 
     <td title="Maximum temperature in degrees Celsius" class="max alignright">16&deg;</td> 
     <td>Fog then fine.</td> 
     </tr> 

     <tr> 
     <td><a href="/products/IDQ10095.shtml" title="Link to Brisbane forecast">Brisbane</a></td> 
     <td title="Maximum temperature in degrees Celsius" class="max alignright">24&deg;</td> 
     <td>Mostly fine</td> 
     </tr> 

     <tr> 
     <td><a href="/products/IDW12300.shtml" title="Link to Perth forecast">Perth</a></td> 
     <td title="Maximum temperature in degrees Celsius" class="max alignright">21&deg;</td> 
     <td>Few showers, increasing later.</td> 
     </tr> 

     <tr> 
     <td><a href="/products/IDS10034.shtml" title="Link to Adelaide forecast">Adelaide</a></td> 
     <td title="Maximum temperature in degrees Celsius" class="max alignright">20&deg;</td> 
     <td>Fine. Mostly sunny.</td> 
     </tr> 

     <tr> 
     <td><a href="/products/IDT65061.shtml" title="Link to Hobart forecast">Hobart</a></td> 
     <td title="Maximum temperature in degrees Celsius" class="max alignright">13&deg;</td> 
     <td>Mainly fine.</td> 
     </tr> 

     <tr> 
     <td><a href="/products/IDN10035.shtml" title="Link to Canberra forecast">Canberra</a></td> 
     <td title="Maximum temperature in degrees Celsius" class="max alignright">15&deg;</td> 
     <td>Fine, mostly sunny.</td> 
     </tr> 

     <tr> 
     <td><a href="/products/IDD10150.shtml" title="Link to Darwin forecast">Darwin</a></td> 
     <td title="Maximum temperature in degrees Celsius" class="max alignright">32&deg;</td> 
     <td>Fine and sunny.</td> 
     </tr> 

    </tbody> 
</table> 

</body> 
</html> 
'; 

    /*** a new dom object ***/ 
    $dom = new domDocument; 

    /*** load the html into the object ***/ 
    $dom->loadHTML($html); 

    /*** discard white space ***/ 
    $dom->preserveWhiteSpace = false; 

    /*** the table by its tag name ***/ 
    $tables = $dom->getElementsByTagName('table'); 

    /*** get all rows from the table ***/ 
    $rows = $tables->item(0)->getElementsByTagName('tr'); 

    /*** loop over the table rows ***/ 
    foreach ($rows as $row) 
    { 
     /*** get each column by tag name ***/ 
     $cols = $row->getElementsByTagName('td'); 
     /*** echo the values ***/ 
     echo $cols->item(0)->nodeValue.'<br />'; 
     echo $cols->item(1)->nodeValue.'<br />'; 
     echo $cols->item(2)->nodeValue; 
     echo '<hr />'; 
    } 
?>

Source

2010-05-12 12:15:18 John

+0

Je pensais qu'il cherchait une solution JavaScript, pas PHP. – JasonMichael

+1

Moi aussi au début, mais j'ai remarqué le tag – John

0

Vous pouvez charger tout le document html via ajax d'une autre page et l'analyser en utilisant les sélecteurs jQuery - si elle est xhtml. Je ne sais pas si ce n'est pas bien formé si cela fonctionnera.

Source

2010-05-12 12:17:00

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