PHP/cURL - Trying to get the text only from a specifc table row : Here is my code:

	<?php
	error_reporting(E_ALL);
	ini_set('display_errors', 1);

		
		$url = 'https://www.fibank.bg/bg/valutni-kursove/page/461';

		
		$curl = curl_init();
			curl_setopt($curl, CURLOPT_COOKIE, "ChosenSite=www; SportsDirect_AnonymousUserCurrency=GBP; language=en-GB");
			curl_setopt($curl, CURLOPT_URL, $url);
			curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
			curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
			curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
			curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
			curl_setopt($curl, CURLOPT_SSLVERSION, 3);
			curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10);
			curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13');
			curl_setopt($curl, CURLOPT_VERBOSE, true);
			$str = curl_exec($curl);  
			curl_close($curl);  


		libxml_use_internal_errors(true); 
		$doc = new \DOMDocument();
		$doc->loadHTML($str);

		$xpath = new \DOMXpath($doc);
		$value = $xpath->query('//td[em="GBP"]/parent::tr/td[last()]')->item(0)->nodeValue;

		print_r($value);

With this code i am trying to parse the URL and get the line from the table which contains `GBP` and the get the text from the last `td`.

However my code seems to be not working.

Where is my mistake and how can i fix it?

Thanks in advance!