3v4l.org

run code in 200+ php & hhvm versions
<?php $date1 = new \DateTime('2006-04-12T12:30:00'); $date2 = new \DateTime('2006-04-14T11:30:00'); //determine what interval should be used - can change to weeks, months, etc $interval = new \DateInterval('PT1H'); //create periods every hour between the two dates $periods = new \DatePeriod($date1, $interval, $date2); //count the number of objects within the periods $hours = iterator_count($periods); echo $hours . ' hours';
Output for 5.3.0 - 5.6.38, hhvm-3.10.1 - 3.22.0, 7.0.0 - 7.2.11
47 hours
Output for 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 4 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 7 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 10 Fatal error: Class 'DateInterval' not found in /in/Vom6N on line 7
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 4 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 7 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 10 Fatal error: Class 'DateTime' not found in /in/Vom6N on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 4 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 7 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 10 Fatal error: Cannot instantiate non-existent class: datetime in /in/Vom6N on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 4 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 7 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/Vom6N on line 10 Fatal error: Cannot instantiate non-existent class: datetime in /in/Vom6N on line 3