title: Determine if specific value exists in any level of a multidimensional array
body: <p>For this nested array:</p>
  
  <pre><code>$status = array(
    "house" =&gt; "OK",
    "car" =&gt; array(
        "car1" =&gt; "OK",
        "car2" =&gt; "ERROR"
     ),
     "boat" =&gt; "OK"
  );
  </code></pre>
  
  <p>I want to know if a certain value "ERROR" exists at least once in the array. I don't care what key it's associated with, I just want to know if the $status array contains an "ERROR" status anywhere in it.</p>
  
  <p>Is there a cleaner way to do this than just iterating over the elements with nested for loops?</p>