title: PHP: How are comments skipped?
body: <p>Well if I comment something it's skipped in all languages, but how are they skipped and what is readed?</p>
  
  <p>Example:</p>
  
  <pre><code>// This is commented out
  </code></pre>
  
  <p>Now does PHP reads the whole comment to go to next lines or just reads the <code>//</code>? </p>