如何把一个日期$time=date("Y-m-d-H-i")的数据提取出前三位?
------解决思路----------------------
$time=date("Y-m-d-H-i");
echo preg_replace('/(\d+)-(\d+)-(\d+)-(\d+)-(\d+)/', '${1}年${2}月${3}日', $time); // 2015-01-15
$time=date("Y-m-d-H-i");
echo preg_replace('/(\d+)-(\d+)-(\d+)-(\d+)-(\d+)/', '${1}年${2}月${3}日', $time); // 2015-01-15