3v4l.org

run code in 300+ PHP versions simultaneously
<?php $hoy = new \DateTime(); $mes = $hoy->format('mm'); $ano = $hoy->format('Y'); echo $mes ."\n"; echo ('01-'.($mes+1).'-'.$ano);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.39, 5.6.28, 7.0.14 - 7.0.20, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
0404 01-405-2015
Output for 5.5.24, 5.5.35, 5.6.21, 7.0.6
0505 01-506-2016
Output for 5.5.25 - 5.5.30, 5.5.34, 5.6.8 - 5.6.14, 5.6.20, 7.0.5
0404 01-405-2016
Output for 5.5.31 - 5.5.33, 5.6.15 - 5.6.19, 7.0.0 - 7.0.4
0303 01-304-2016
Output for 5.4.45
0909 01-910-2015
Output for 5.4.40 - 5.4.44
0808 01-809-2015
Output for 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/B9qDO on line 2 0404 01-405-2015
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/B9qDO on line 2 Fatal error: Class 'DateTime' not found in /in/B9qDO on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/B9qDO on line 2 Fatal error: Cannot instantiate non-existent class: datetime in /in/B9qDO 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/B9qDO on line 2 Fatal error: Cannot instantiate non-existent class: datetime in /in/B9qDO on line 2

preferences:
219.45 ms | 401 KiB | 351 Q