title: How to remove the leading character from a string?
body: <p>I have a input string like:</p>
  <pre><code>$str = ':this is a applepie :) ';
  </code></pre>
  <p>How can I remove the first occurring <code>:</code> with PHP?</p>
  <p>Desired output: <code>this is a applepie :) </code></p>