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run code in 150+ php & hhvm versions
Bugs & Features
<?php date_default_timezone_set("Asia/Shanghai"); echo date("Y-m", strtotime("-1 month", strtotime("first day of this month")));
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
2014-09
Output for 5.1.3 - 5.2.17
1969-12
Output for 5.1.0 - 5.1.2
1970-01
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function date_default_timezone_set() in /in/uPDMW on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: date_default_timezone_set() in /in/uPDMW on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: date_default_timezone_set() in /in/uPDMW on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: date_default_timezone_set() in /in/uPDMW on line 3