title: Checking if a string is a double or not
body: <p>I am trying to check in php if a string is a double or not.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>   if(floatval($num)){
           $this-&gt;print_half_star();
      }
  </code></pre>
  
  <p>$num is a string..The problem is that even when there is an int it gives true. Is there a way to check if it is a float and not an int!?</p>