Online PHP editor | output for t6orN

@ 2015-09-29T12:00:54Z

<?php
$TwoWeeksAgo = new DateTime(date("Ymd"));
            $TwoWeeksAgo->sub(new DateInterval('P'.abs ( (7-date("N")-14)).'D'));
            $LastWeek = new DateTime(date("Ymd"));
            $LastWeek->sub(new DateInterval('P'.abs ( (7-date("N")-7)).'D'));
            $ThisWeek = new DateTime(date("Ymd"));
            $ThisWeek->add(new DateInterval('P'.abs ( (7-date("N"))).'D'));

            echo 'Start of This week is '.$ThisWeek->format('l m/d/Y').\n;
            echo 'Start of Last week is '.$LastWeek->format('l m/d/Y').\n;
            echo 'Start of 2 weeks ago is '.$TwoWeeksAgo->format('l m/d/Y').\n;

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught Error: Undefined constant "n" in /in/t6orN:9 Stack trace: #0 {main} thrown in /in/t6orN on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Fatal error: Uncaught Error: Undefined constant 'n' in /in/t6orN:9 Stack trace: #0 {main} thrown in /in/t6orN on line 9
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: Fatal error: Undefined constant 'n' in /in/t6orN on line 9
Process exited with code 255.

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