php用date格式化输出指定范围的时间
需求
今天做日志分析时，由于日志是按天分割的，我需要遍历30天的日志，如果获得类似20130101-20130131这样的数组后缀呢，写了个小程序实现了一下，这里记录一下，主要是date函数和strtotime函数的应用
php实现代码
$stand = "2013-01-"; for ($i = 1; $i
实现效果
date函数获取前一天或后一天日期
php代码
//日期定义
$day = date("Ymd", strtotime("-1 day"));
echo $day."\n";
$day = date("Ymd", strtotime("+1 day"));
echo $day."\n";
效果
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