title: Grab specific value from string with PHP
body: <p>I want to grab the full contents of the value <code>utm_campaign</code> from the <em><strong>$page</strong></em> variable using the following PHP:</p>
  <pre><code>$page = &quot;utm_source=google&amp;utm_campaign=Test | Test - Exact&amp;utm_test=test&quot;;
  preg_match_all('#utm_campaign=([^\s&amp;]+)#', $page, $matches);
  var_dump($matches);
  </code></pre>
  <p>However the above <em>var_dump</em> only outputs the following:</p>
  <p><code>Test</code></p>