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HomeBackend DevelopmentPHP ProblemHow to get specific date in php

This article will introduce to you how to get a specific date in php. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

How to get specific date in php

Monday this week

// 本周一,w为星期几的数字形式,这里0为周日。
$dt = date('Y-m-d', (time() - ((date('w') == 0 ? 7 : date('w')) - 1) * 24 * 3600));

Sunday this week

// 本周日,同样使用w,以现在与周日相关天数算。
$dt = date('Y-m-d', (time() + (7 - (date('w') == 0 ? 7 : date('w'))) * 24 * 3600));

Monday last week

// 上周一,无论今天几号,-1 monday为上一个有效周未。
$dt = date('Y-m-d', strtotime('-1 monday', time()));

Last Sunday

// 上周日,上一个有效周日,同样适用于其它星期。
$dt = date('Y-m-d', strtotime('-1 sunday', time()));

First day of this month

// 本月1日,直接以strtotime生成
$dt = date('Y-m-d', strtotime(date('Y-m', time()) . '-01 00:00:00'));

Last day of this month

// 本月最后一天,t为当月天数,28至31天。
$dt = date('Y-m-d', strtotime(date('Y-m', time()) . '-' . date('t', time()) . ' 00:00:00'));

First day of last month

// 上月1日,本月1日上减一个月。
$dt = date('Y-m-d', strtotime('-1 month', strtotime(date('Y-m', time()) . '-01 00:00:00')));

Last day of last month

// 上月最后一天,本月第一天减一天即是上月最后一天。
$dt = date('Y-m-d', strtotime(date('Y-m', time()) . '-01 00:00:00') - 86400);

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