Guzzle Http Client ambiguous response - php

Question

Here's my code in a different file
use Symfony\Component\DomCrawler\Crawler;
$guzzle = new GuzzleHttp\Client(['base_url' => 'http://pricematch.pk/mobile/samsung-galaxy-s6-80514-price-in-Pakistan']);
$response = $guzzle->get();
$crawler = new Crawler((string)$response->getBody());
echo $crawler->filter('.product-shop-wrapper .price')->text()."\r\n";
The url in this one is hardcoded and this one successfully echos the filtered text. When the same url/any url in the each loop in below code comes from a variable
$guzzle = new GuzzleHttp\Client(['base_url' => 'pricematch.pk/mobile-phone-prices-in-pakistan']);
$response = $guzzle->get();
$crawler = new Crawler((string)$response->getBody());
$crawler->filter('.product-name')->each(function ($node,$counter) {
echo $counter." ".$node->text()."\r\n";
$url=$node->filter('a')->extract(array('href'))[0]."\r\n";
echo $url."\r\n";
$url='http://pricematch.pk'.$url;
echo $url;
$guzzle = new GuzzleHttp\Client(['base_url' => $url]);
$response = $guzzle->get();
$crawler = new Crawler((string)$response->getBody());
the crawler throws an exception saying the current node list is empty. The href returns a relative url which I append with root url in the above code. I have printed the resultant url a lot many times. The filter throws exception even when the url is same as in code#1.
What am I doing wrong? Update 2: I just found out that data in code2 crawler is coming from
pricematch.pk/mobile-phone-prices-in-pakistan
Where it should be coming from
$url
What's goin on here?

Answer 1

Stupid me. While extracting URL in above code, I concatenated the newline character which got maybe encoded the URL to come out as __ at the end of the URL which basically changed the URL and hence the changed response.