title: Explode each values of Array element
body: <p>I have an array like :</p>
  
  <pre><code>Array
  (
     [2] =&gt; 2,6
     [3] =&gt; 1
     [4] =&gt; 14
     [5] =&gt; 10
     [6] =&gt; 8
  )
  </code></pre>
  
  <p>I want to explode each element of an array and return a new array using array_map, so that I can avoid using loop, and creating extra function to call back.</p>
  
  <p>O/p should be like : </p>
  
  <pre><code>  Array
  (
  [2] =&gt; Array
      (
          [0] =&gt; 2
          [1] =&gt; 6
      )
  
  [3] =&gt; Array
      (
          [0] =&gt; 1
      )
  
  [4] =&gt; Array
      (
          [0] =&gt; 14
      )
  
  [5] =&gt; Array
      (
          [0] =&gt; 10
      )
  
  [6] =&gt; Array
      (
          [0] =&gt; 8
      )
  
  )
  </code></pre>