meaning of &$variable and &function?
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/3737139/reference-what-does-this-symbol-mean-in-php">Reference - What does this symbol mean in PHP?</a>  </p>
</blockquote>



<p>what is the meaning of <code>&amp;$variable</code> <br/>
and meaning of functions like</p>

<pre><code>function &amp;SelectLimit( $sql, $nrows=-1, $offset=-1, $inputarr=false, $secs2cache=0 )
{
    $rs =&amp; $this-&gt;do_query( $sql, $offset, $nrows, $inputarr);
    return $rs;
} 
</code></pre>
