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PHP bug strtotime

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2016-06-23 13:03:49972browse

echo date('Y-m',strtotime('-1 months'));
echo "\r\n";
echo date('Y-m',strtotime('first day of last month'));
echo "\r\n";
echo date('Y-m',strtotime('-1 week'));




当遇到月为31日是 date('Y-m',strtotime('-1 months'));求的月份还是当月的

正确使用方式

echo date('Y-m',strtotime('first day of last month'));


echo date('Y-m-d H:i:s', strtotime('-1 month', strtotime(date('Y-m'))));

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