String with Double quoted and Single quoted
<p>i have a string with double quote like this</p>

<pre><code>$count = 5;
$str = "result: $count";
echo $str; //result: 5
</code></pre>

<p>variable parsing work well, and my problem is $count var must be define later than $str </p>

<pre><code>$str = "result: $count";
$count = 5;
echo $str; //result:
</code></pre>

<p>So i will use single quote and ask a question here to finding a way to parse var whenever i want</p>

<pre><code>$str = 'result: $count';
$count = 5;
//TODO: parse var process
echo $str; //result: 5
</code></pre>

<p>I'm will not using regex replace.</p>
