title: preg match count matches
body: <p>I have a preg match statement, and it checks for matches, but I was wondering how you can count the matches. Any advice appreciated.</p>
  
  <pre><code>$message='[tag] [tag]';
  preg_match('/\[tag]\b/i',$message);
  </code></pre>
  
  <p>for example a count of this message string should lead to 2 matches</p>