How to display the previously assigned value in a variable in PHP?
<p>I have some PHP statements as </p>

<pre><code>&lt;?php 
$i = 10;
$i = 15;
echo $i;
?&gt;
</code></pre>

<p>Now we all are aware of the fact that this will give us "15", what should i do after assignment to the variable $i with value "15", so that we can get output as "10"?</p>
