PHP function to capture all links inside a <DIV> on a remote site using the scrape method

Question

Does anyone have a PHP function that can capture all links inside a specific DIV on a remote site? Thus, use can be:

$ links = grab_links ($ url, $ divname);

And return an array that I can use. Exciting links I can understand, but not sure how to do this, only within a specific div.

Thank! Scott

Answer 1

PHP XPath. . php- : http://php.net/manual/en/simplexmlelement.xpath.php

URL- DIV :

$xml = new SimpleXMLElement($docAsString);

$result = $xml->xpath('//div//a');

HTML , XML.

XPath: http://msdn.microsoft.com/en-us/library/ms256086.aspx

Answer 2

Simple DOM PHP:

http://simplehtmldom.sourceforge.net/

:

// Create DOM from URL or file
$html = file_get_html('http://www.google.com/');

// Find all images 
foreach($html->find('img') as $element) 
       echo $element->src . '<br>';

// Find all links 
foreach($html->find('a') as $element) 
       echo $element->href . '<br>';

Answer 3

-, , , , .

http://www.earthinfo.org/xpaths-with-php-by-example/

<?php

$html = new DOMDocument();
@$html->loadHtmlFile('http://www.bbc.com');
$xpath = new DOMXPath( $html );
$nodelist = $xpath->query( "//div[@id='news_moreTopStories']//a/@href" );
foreach ($nodelist as $n){
echo $n->nodeValue."\n";
}

// for images

echo "<br><br>";
$html = new DOMDocument();
@$html->loadHtmlFile('http://www.bbc.com');
$xpath = new DOMXPath( $html );
$nodelist = $xpath->query( "//div[@id='promo_area']//img/@src" );
foreach ($nodelist as $n){
echo $n->nodeValue."\n";
}

?>

PHP DOM, ...

http://w-shadow.com/blog/2009/10/20/how-to-extract-html-tags-and-their-attributes-with-php/

$html = file_get_contents('http://www.bbc.com');
//Create a new DOM document
$dom = new DOMDocument;

//Parse the HTML. The @ is used to suppress any parsing errors
//that will be thrown if the $html string isn't valid XHTML.
@$dom->loadHTML($html);

//Get all links. You could also use any other tag name here,
//like 'img' or 'table', to extract other tags.
$links = $dom->getElementById('news_moreTopStories')->getElementsByTagName('a');

//Iterate over the extracted links and display their URLs
foreach ($links as $link){
    //Extract and show the "href" attribute. 
    echo $link->getAttribute('href'), '<br>';
}