What does putting code in a curly brace block mean
<p>IN php, and some other languages i can have a code block without any entry conditions such as if, or for or function call:</p>

<pre><code>   echo "Hello World";

   {
    echo "What does this mean";

   }
</code></pre>

<p>What does this signify exactly. If I am not wrong, I can also do this in java. What exactly does this signify?</p>
