Re-indexing the arrays numerically
<p>How can i remove <code>NULL</code> values in an array with its index and reassign the index to other values in order?</p>

<pre><code>Array
(
    [1] =&gt; 115,2010-02-17,19:30
    [3] =&gt; 400,2006-03-01,22:00
    [4] =&gt; 474,2006-04-10,02:30
    [5] =&gt; 7547,2006-08-02,23:16
)
</code></pre>

<p>But what i need is:</p>

<pre><code>Array
(
    [1] =&gt; 115,2010-02-17,19:30
    [2] =&gt; 400,2006-03-01,22:00
    [3] =&gt; 474,2006-04-10,02:30
    [4] =&gt; 7547,2006-08-02,23:16
)
</code></pre>
