title: How to get single value from Crawler filter()?
body: <p>Using: <a href="https://github.com/FriendsOfPHP/Goutte" rel="nofollow noreferrer">https://github.com/FriendsOfPHP/Goutte</a>. 
  I want to parse single value from a website using following code:</p>
  
  <pre><code>$client = new Client();
  $crawler = $client-&gt;request('GET', 'https://mig.kz');
  
  $crawler-&gt;filter('.buy')-&gt;eq(0)-&gt;each(function ($node) {                                                                                                                                                
     echo $node-&gt;text();                                                                                                                                                                                       
  });
  </code></pre>
  
  <p>I can get a single value using <code>each()</code>, but is this possible without each? How can i store the first matching value in a variable, then reuse it later?</p>