3v4l.org

run code in 300+ PHP versions simultaneously
<?php $start = strtotime('20016-02-05'); $end = strtotime('2016-04-05'); $start_m = new DateTime('20016-02-05'); $end_m = new DateTime('2016-04-05'); $start_m->modify('first day of this month'); $end_m->modify('first day of next month'); $interval = DateInterval::createFromDateString('1 month'); $period = new DatePeriod($start_m, $interval, $end_m); print_r($date_range_m);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined variable $date_range_m in /in/LSpe0 on line 13
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined variable $date_range_m in /in/LSpe0 on line 13
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.32, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: date_range_m in /in/LSpe0 on line 13
Output for 7.3.32 - 7.3.33

preferences:
227.26 ms | 401 KiB | 293 Q