title: PHP array_key_exists not working
body: <p>I have a PHP array that looks like this if I <strong>print_r($myarray)</strong></p>
  
  <pre><code>Array ( [0] =&gt; Array ( [description] =&gt; testdecr [link] =&gt; testlink [image_id] =&gt; 150 ) )
  </code></pre>
  
  <p>I am trying to check for a key called <strong>image_id</strong> by doing this...</p>
  
  <pre><code>if (array_key_exists("image_id",$myarray)) {
          echo 'Image_id exists';
      }
  </code></pre>
  
  <p>This is not working, anyone any ideas what I am doing wrong?</p>