3v4l.org

run code in 300+ PHP versions simultaneously
<?php $weekModifier = 2; $date = new DateTime(); if($date->format('N') !== 1) { $date->sub(new DateInterval('P'. $date->format('N') . 'D')); } $interval = new DateInterval('P'.abs($weekModifier).'W'); if($weekModifier > 0) { $date->add($interval); } else { $date->sub($interval); } for($i = 1; $i <= 7; $i++) { echo $date->add(new DateInterval('P1D'))->format('l Y-m-d') . "<br>\n"; } ?>
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Monday 2014-05-26<br> Tuesday 2014-05-27<br> Wednesday 2014-05-28<br> Thursday 2014-05-29<br> Friday 2014-05-30<br> Saturday 2014-05-31<br> Sunday 2014-06-01<br>
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::sub() in /in/WRnHW on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/WRnHW on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_OBJECT_OPERATOR, expecting ',' or ';' in /in/WRnHW on line 20
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_OBJECT_OPERATOR, expecting ',' or ';' in /in/WRnHW on line 20
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `','' or `';'' in /in/WRnHW on line 20
Process exited with code 255.

preferences:
338.42 ms | 401 KiB | 448 Q