3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** * @param \DateTime $date Date of the original meeting * @return \DateTime Date of the next meeting */ function getFirstWeekOfYear(\DateTime $date = null) { if(!$date){ $date = new \DateTime(); } return (new \DateTime())->setISODate((int)$date->format('o') + 1, 1, $date->format('w')); } echo getFirstWeekOfYear(new \DateTime('2015-03-18'))->format('Y-m-d');
Output for 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
2016-01-06
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/apqrG on line 11
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/apqrG on line 6 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/apqrG on line 9 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/apqrG on line 11 Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/apqrG on line 11
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/apqrG on line 6 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/apqrG on line 9 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/apqrG on line 11 Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/apqrG on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/apqrG on line 6 Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/apqrG on line 6
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
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/apqrG on line 6 Parse error: parse error, unexpected T_STRING, expecting ')' in /in/apqrG on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/apqrG on line 6 Parse error: parse error, expecting `')'' in /in/apqrG on line 6
Process exited with code 255.
preferences:
359.48 ms | 401 KiB | 453 Q