title: PHP static variables in double quotes
body: <p>How can I get PHP to evaluate a static variable in double quotes?</p>
  <p>I want to do something like this:</p>
  <pre><code>log(&quot;self::$CLASS $METHOD entering&quot;);
  </code></pre>
  <p>I've tried all sorts of <code>{}</code> combos to get the variable value of <code>self::$CLASS</code>, but nothing has worked.  I've currently settled with string concatenation but it is a pain to type:</p>
  <pre><code>log(self::$CLASS . &quot; $METHOD entering&quot;);
  </code></pre>