3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $start = new DateTime('first monday of this month'); echo $start->format(DateTime::ISO8601); $end = new DateTime('last monday of this month'); echo $end->format(DateTime::ISO8601); $dp = new DatePeriod($start, new DateInterval('P7D'), $end); foreach($dp as $d) { echo $d->format(DateTime::ISO8601).PHP_EOL; }
based on rAvlL
Output for 5.3.0 - 5.4.32, 5.6.28, 7.0.14 - 7.1.0
2014-10-06T00:00:00+02002014-10-27T00:00:00+01002014-10-06T00:00:00+0200 2014-10-13T00:00:00+0200 2014-10-20T00:00:00+0200
Output for 5.5.24, 5.5.35, 5.6.21, 7.0.6
2016-05-02T00:00:00+02002016-05-30T00:00:00+02002016-05-02T00:00:00+0200 2016-05-09T00:00:00+0200 2016-05-16T00:00:00+0200 2016-05-23T00:00:00+0200
Output for 5.5.25 - 5.5.30, 5.5.34, 5.6.8 - 5.6.14, 5.6.20, 7.0.5
2016-04-04T00:00:00+02002016-04-25T00:00:00+02002016-04-04T00:00:00+0200 2016-04-11T00:00:00+0200 2016-04-18T00:00:00+0200
Output for 5.5.31 - 5.5.33, 5.6.15 - 5.6.19, hhvm-3.12.0, 7.0.0 - 7.0.4
2016-03-07T00:00:00+01002016-03-28T00:00:00+02002016-03-07T00:00:00+0100 2016-03-14T00:00:00+0100 2016-03-21T00:00:00+0100
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.43 - 5.4.45
2015-09-07T00:00:00+02002015-09-28T00:00:00+02002015-09-07T00:00:00+0200 2015-09-14T00:00:00+0200 2015-09-21T00:00:00+0200
Output for 5.4.34 - 5.4.42
2015-07-06T00:00:00+02002015-07-27T00:00:00+02002015-07-06T00:00:00+0200 2015-07-13T00:00:00+0200 2015-07-20T00:00:00+0200
Output for 5.2.0 - 5.2.17
Fatal error: Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (first monday of this month) at position 13 (o): The timezone could not be found in the database' in /in/NlXtc:2 Stack trace: #0 /in/NlXtc(2): DateTime->__construct('first monday of...') #1 {main} thrown in /in/NlXtc on line 2
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/NlXtc on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected ')', expecting '(' in /in/NlXtc on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected ')', expecting '(' in /in/NlXtc on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'('' in /in/NlXtc on line 3
Process exited with code 255.