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run code in 150+ php & hhvm versions
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<?php echo date('Y-m-d', strtotime(date('2013-02-28').' + 0 month')); echo ' '; echo date('Y-m-d', strtotime(date('2013-02-28').' + 1 month')); echo ' '; echo date('Y-m-d', strtotime(date('2013-02-28').' + 2 month'));
Output for 4.3.0 - 5.0.5, 5.1.2 - 5.6.23, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
2013-02-28 2013-03-28 2013-04-28
Output for 5.1.0 - 5.1.1
1970-01-01 1970-01-01 1970-01-01