1 files changed, 29 insertions, 0 deletions
diff --git a/reference.php b/reference.php
new file mode 100644
index 0000000..b1cf789
--- /dev/null
+++ b/reference.php
@@ -0,0 +1,29 @@
+<!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>
+