title: Check if an array has a key without a value, then do this (PHP)?
body: <p>Say I have an array that looks like this:</p>
  
  <pre><code>Array
  (
      [0] =&gt; 
      [1] =&gt; 2017-01-01 00:00:00
  )
  </code></pre>
  
  <p>How can I dynamically check to see if the area has any empty values?</p>