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<?php 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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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/NWHOZ on line 7
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/NWHOZ on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/NWHOZ on line 5 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/NWHOZ on line 7 Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/NWHOZ on line 7
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/NWHOZ on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/NWHOZ on line 5 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/NWHOZ on line 7 Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/NWHOZ on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/NWHOZ on line 2 Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/NWHOZ on line 2
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/NWHOZ on line 2 Parse error: parse error, unexpected T_STRING, expecting ')' in /in/NWHOZ on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/NWHOZ on line 2 Parse error: parse error, expecting `')'' in /in/NWHOZ on line 2
Process exited with code 255.
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