--- /dev/null
+--TEST--
+Bug #16700 - child classes of HttpMessage cannot not have array properties
+--SKIPIF--
+<?php
+include 'skip.inc';
+checkver(5);
+?>
+--FILE--
+<?php
+echo "-TEST\n";
+
+class ChildMessage extends HttpMessage {
+ public $properties = array();
+}
+
+$child = new ChildMessage;
+$child->properties['foo'] = 'bar';
+echo $child->properties['foo'], "\n";
+echo "Done\n";
+?>
+--EXPECTF--
+%aTEST
+bar
+Done