PHP preg_split()
<p>I am trying to use preg_split as below:</p>

<pre><code>$tarea = "13.3R4.2";
$keywords = preg_split("/[0-9]*.[0-9][a-zA-Z]/", $tarea);
print_r ($keywords);
</code></pre>

<p>I am unable to capture the array [0] value. Below is the output:</p>

<pre><code>Array ( [0] =&gt; [1] =&gt; 4.2 ) 
</code></pre>

<p>I want to capture both the indexes of the array. I am not sure what mistake I am doing here. Kindly help!!</p>

<p>The output I expect is: </p>

<pre><code>Array ( [0] =&gt; 13.3R[1] =&gt; 4.2 ) 
</code></pre>

<p>Thanks</p>