--- /dev/null
+--TEST--
+Bug #52342 (DateTime setIsoDate results in wrong timestamp)
+--FILE--
+<?php
+date_default_timezone_set('Europe/Berlin');
+$from = new DateTime();
+$from->setTime(0, 0, 0);
+$from->setISODate(2010, 28, 1); //Montag der 28ten Woche 2010
+
+echo $from->format('d.m.Y H:i'), "\n"; //A
+echo $from->getTimestamp(), "\n"; //B
+echo date('d.m.Y H:i', $from->getTimestamp()), "\n"; //C
+
+$from->add(new DateInterval('P0D'));
+echo $from->getTimestamp(), "\n"; //B
+echo date('d.m.Y H:i', $from->getTimestamp()), "\n"; //C
+?>
+--EXPECT--
+12.07.2010
+1278885600
+12.07.2010 00:00
+1278885600
+12.07.2010 00:00