Scrape a decoded information with PHP & Curl - php

Question

I'm trying to understand how to scrape decoded phone numbers from a yellow page website with PHP & Curl.
Here is an example URL:
https://www.gelbeseiten.de/test
Normally you can technically do it with something like this:
$ch = curl_init();
$page = curl_exec($ch);
if(preg_match('#example html code (.*) example html code#', $page, $match))
$result = $match[1];
echo $result;
But on the page mentioned above you cannot directly find the phone number in the HTML code. There must be a way to get the phone number.
Can you please help me out?
Best regards,
Jennifer

Answer 1

Don't use regex to parse html, use an html parser like DOMDocument, i.e.:
$html = file_get_contents("https://www.gelbeseiten.de/test");
libxml_use_internal_errors(true);
$dom = new DOMDocument();
$dom->loadHTML($html);
$xpath = new DOMXPath($dom);
foreach ($xpath->query('//span[contains(#class,"nummer")]') as $item) {
print trim($item->textContent);
}
Output:
(0211) 4 08 05(0211) 4 08 05(0211) 4 08 05(0211) 4 08 05(0231) 9 79 76(0231)...

Answer 2

As suggested in a comment - using an XPath expression yields the phone numbers as desired.
$url='https://www.gelbeseiten.de/test';
$dom=new DOMDocument;
$dom->loadHTMLFile( $url );
$xp=new DOMXpath( $dom );
$query='//li[#class="phone"]';
$col=$xp->query($query);
if( $col ){
foreach( $col as $node )echo $node->nodeValue . "<br />";
}
$dom = $xp = $col = null;