title: PHP strcasecmp with empty string equals true?
body: <p>Basically I have the code:</p>
  
  <pre><code>echo strcasecmp('hello', ' ') ? 'true' : 'false';
  </code></pre>
  
  <p>I don't quite understand, I'm expecting the result here to be false and not true because the string aren't equal...</p>
  
  <p>Is there another better way to compare strings in a case INSENSITIVE way?</p>