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run code in 150+ php & hhvm versions
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<?php $date = new \DateTime(); $oneWeek = new \DateInterval('P7D'); var_dump($date->format('W')); $date->add($oneWeek); var_dump($date->format('W'));
Output for 5.6.28, 7.0.14 - 7.1.0
string(2) "34" string(2) "35"
Output for 5.3.0 - 5.6.21, 7.0.0 - 7.0.6
string(2) "20" string(2) "21"
Output for 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Iog93 on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Iog93 on line 3 Fatal error: Class 'DateInterval' not found in /in/Iog93 on line 3
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Iog93 on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Iog93 on line 3 Fatal error: Class 'DateTime' not found in /in/Iog93 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Iog93 on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Iog93 on line 3 Fatal error: Cannot instantiate non-existent class: datetime in /in/Iog93 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Iog93 on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Iog93 on line 3 Fatal error: Cannot instantiate non-existent class: datetime in /in/Iog93 on line 2