title: PHP Array - Removing empty values
body: <p>How do I loop through this array and remove any empty values:</p>
  
  <pre><code>[28] =&gt; Array
      (
          [Ivory] =&gt; 
          [White] =&gt; 
      )
  
  [29] =&gt; Array
      (
          [Ivory] =&gt; 
          [White] =&gt; 
      )
  
  [30] =&gt; Array
      (
          [Ivory] =&gt; 
          [White] =&gt; 36
      )
  
  [31] =&gt; Array
      (
          [White] =&gt; 24
      )
  </code></pre>
  
  <p>So say it'd remove 28, 29 and just Ivory from 30...</p>
  
  <p>Thanks!</p>