title: preg_match to remove {$ ... }
body: <p>I'm looking for a regex to preg_replace in strings between curly brackets followed by $ symbol in this way:</p>
  
  <pre><code>{$string} //match
  {$123string} //match
  {string} //no match
  {$string123} //match
  [$string] //no match
  </code></pre>