curly braces variables
<p>I have this: </p>

<pre><code>echo 'm=&gt;'.$fin_type_2; // echoes 'test text';
</code></pre>

<p>Now, if I do the following, I get nothing, whereas I was expecting the same result as above. What I am doing wrong here ?</p>

<pre><code>$z=2;
echo 'm=&gt;'.$fin_type_{$z}; // echoes nothing but m=&gt;
</code></pre>

<p>Help appreciated. 
Many thanks.</p>
