How to get specific date in php-PHP Problem-php.cn

How to get specific date in php

醉折花枝作酒筹

Release： 2023-03-10 08:34:01

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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.

// 本周一，w为星期几的数字形式，这里0为周日。
$dt = date(&#39;Y-m-d&#39;, (time() - ((date(&#39;w&#39;) == 0 ? 7 : date(&#39;w&#39;)) - 1) * 24 * 3600));

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Sunday this week

// 本周日，同样使用w，以现在与周日相关天数算。
$dt = date(&#39;Y-m-d&#39;, (time() + (7 - (date(&#39;w&#39;) == 0 ? 7 : date(&#39;w&#39;))) * 24 * 3600));

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Monday last week

// 上周一，无论今天几号，-1 monday为上一个有效周未。
$dt = date(&#39;Y-m-d&#39;, strtotime(&#39;-1 monday&#39;, time()));

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Last Sunday

// 上周日，上一个有效周日，同样适用于其它星期。
$dt = date(&#39;Y-m-d&#39;, strtotime(&#39;-1 sunday&#39;, time()));

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First day of this month

// 本月1日，直接以strtotime生成
$dt = date(&#39;Y-m-d&#39;, strtotime(date(&#39;Y-m&#39;, time()) . &#39;-01 00:00:00&#39;));

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Last day of this month

// 本月最后一天，t为当月天数，28至31天。
$dt = date(&#39;Y-m-d&#39;, strtotime(date(&#39;Y-m&#39;, time()) . &#39;-&#39; . date(&#39;t&#39;, time()) . &#39; 00:00:00&#39;));

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First day of last month

// 上月1日，本月1日上减一个月。
$dt = date(&#39;Y-m-d&#39;, strtotime(&#39;-1 month&#39;, strtotime(date(&#39;Y-m&#39;, time()) . &#39;-01 00:00:00&#39;)));

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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(&#39;Y-m-d&#39;, strtotime(date(&#39;Y-m&#39;, time()) . &#39;-01 00:00:00&#39;) - 86400);

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