title: PHP: Parse from an array the oldest date
body: <p>I have this array:</p>
  
  <pre><code>array(2) { 
      [0]=&gt; array(2) {
          ["url"]=&gt; string(104) "aHR0cDovL3lvdXR1YmUuY29t"
          ["date"]=&gt; string(19) "2014-01-06 21:44:39" 
       }
  
      [1]=&gt; array(2) { 
          ["url"]=&gt; string(28) "aHR0cDovL3d3dy5nb29nbGUuY29t"
          ["date"]=&gt; string(19) "2014-01-06 14:28:32"
       }
   } 
  </code></pre>
  
  <p>How can I parse the <code>$row['date']</code> for the earliest date?</p>