Extract Meta itemprop="price" content

Question

A given URL has code :-

  <meta itemprop="price" content="12.00" />

I want to extract 12 to a new variable, I have no idea from where to begin because here we cannot use Tags PHP function which is used to extract normal meta tags!

Answer 1

In order to get all meta tags you should make use of XPath to select all nodes

$xmlsource = 'http://www.example.com/';
$d = new DOMDocument();
$d->loadHTML($xmlsource);
$xpath = new DOMXPath($d);
//find all elements with itemprop attribute
$nodes = $xpath->query('//*[@itemprop]');  
foreach ($nodes as $node) { 

 }

Answer 2

You can also use DOMDocument::getElementsByTagName:

$string  = file_get_contents('http://www.example.com/');
$dom = new DOMDocument();
$dom->loadHTML($string);
$dom->preserveWhiteSpace = false;
//get all meta tags
$el = $dom->getElementsByTagName('meta');

echo'<pre>';
print_r($el);
echo'</pre>';

foreach($el as $val){
    //get value of each content
    echo $val -> getAttribute('content').'<br>';
}

Answer 3

The XPath filter would be //meta[@itemprop='price']/@content

if you were in Google Sheets you could use the importXML formula as follows....

=importxml("http://www.example.com/product-specific-url-here", "//meta[@itemprop='price']/@content")

Is that what you were looking for?