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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Hacker's Corner</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<?php
function &square(&$var)
{
$var *= $var;
return $var;
}
$num = 8;
$ref = &square($num); /* perform so called handshake */
echo $num . "<br />\n";
echo $ref . "<br /><br />\n";
$ref++;
echo $num . "<br />\n";
echo $ref . "<br />\n";
?>
</body>
</html>
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