How to make variable with a variable?
<p>I would make a varibale with a variable.</p>

<p>My varaible should look like this <code>$_test</code> and the php-Code that I think it is right but doesn't work is:
<code>$alias='test';</code></p>

<p><code>$_$alias</code> or <code>$_.{$alias}</code> or <code>{$_}.{$alias}</code></p>
