title: preg_replace {varying text}
body: <p>I am looking for a regex expression for preg_replace($the_expression, "", $old_text)</p>
  
  <p>I have text like:</p>
  
  <p>{some text} Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only {varying text} five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s {some other text}with the release of Letraset sheets containing</p>
  
  <p>I want to target any varying text inside curly brackets, and the curly brackets too, and replace with "" (nothing).</p>