title: how to echo subarray of array in php?
body: <p>i have array</p>
  
  <pre><code>$array= Array(
      'A' =&gt; Array
          (
              1 =&gt;'foo',
              2=&gt;Array(
                  'a'=&gt;'bar'
                  )
                  ),
            'B' =&gt;'baz'
  </code></pre>
  
  <p>i want to print 
  <code>'a'=&gt;'bar'</code> this subarray.</p>