title: Best way to determine if a file is empty (php)?
body: <p>I'm including a custom.css file in my template to allow site owners to add their own css rules. However, when I ship the file, its empty and there's no sense loading it if they've not added any rules to it.</p>
  
  <p>What's the best way to determine if its empty?</p>
  
  <pre><code>if ( 0 == filesize( $file_path ) )
  {
      // file is empty
  }
  
  // OR:
  
  if ( '' == file_get_contents( $file_path ) )
  {
      // file is empty
  } 
  </code></pre>