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Detailed explanation of data examples for querying the current day, querying this week, and querying this month using php and mysql

墨辰丷
Release: 2023-03-28 07:12:02
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This article mainly introduces the details of data examples of querying the day, querying this week, and querying this month in PHP and MySQL. Interested friends can refer to it. I hope it will be helpful to everyone.

php, mysql query the current day, query this week, query this month's data instance (field is timestamp)

//其中 video 是表名;
//createtime 是字段;
//
//数据库time字段为时间戳
//
//查询当天:

$start = date('Y-m-d 00:00:00');
$end = date('Y-m-d H:i:s');
SELECT * FROM `table_name` WHERE `time` >= unix_timestamp( &#39;$start&#39; ) AND `time` <= unix_timestamp( &#39;$end&#39; )

//查询本周:

SELECT yearweek( &#39;2011-04-17 15:38:22&#39;,1 ) //结果是201115
SELECT yearweek( &#39;2011-04-17 15:38:22&#39; ) //结果是201116
//yearweek的第2个参数设置为1的原因是,中国人习惯把周1作为本周的第一天
//另外补充下:
//2011-04-17 是周日。
SELECT dayofweek( &#39;2011-04-17 15:38:22&#39; )// 查询出的是1,把礼拜天作为一周的第一天。
SELECT dayofweek( &#39;2011-04-18 15:38:22&#39; ) //查询出的是2
SELECT weekday( &#39;2011-04-17 15:38:22&#39; )// 查询出的是6,
SELECT weekday( &#39;2011-04-18 15:38:22&#39; )// 查询出的是0,
//所以建议使用weekday,查询出来的结果+1就可以了,就比较符合国人的习惯了。

SELECT * FROM `table_name` WHERE YEARWEEK( FROM_UNIXTIME( `time`, &#39;%Y-%m-%d %H:%i:%s&#39; ) ,1) = YEARWEEK( now( ),1 )

//查询本月:

$start = date(&#39;Y-m-01 00:00:00&#39;);
$end = date(&#39;Y-m-d H:i:s&#39;);
SELECT * FROM `table_name` WHERE `time` >= unix_timestamp(&#39;”.$start.”&#39;) AND `time` <= unix_timestamp(&#39;$end&#39;)

//查询本年:

$start = date(&#39;Y-01-01 00:00:00&#39;);
$end = date(&#39;Y-m-d H:i:s&#39;);
SELECT * FROM `table_name` WHERE `time` >= unix_timestamp( &#39;$start&#39; ) AND `time` <= unix_timestamp( &#39;$end&#39; )
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php Get the start timestamp and end time of today, yesterday, last week, and this month

<?php
//<!--php 获取今日、昨日、上周、本月的起始时间戳和结束时间戳的方法,主要使用到了 php 的时间函数 mktime()。-->


//1、php获取今日开始时间戳和结束时间戳 

$beginToday = mktime(0,0,0,date(&#39;m&#39;),date(&#39;d&#39;),date(&#39;Y&#39;));
$endToday = mktime(0,0,0,date(&#39;m&#39;),date(&#39;d&#39;)+1,date(&#39;Y&#39;))-1;

echo $beginToday.&#39;---&#39;.$endToday;
echo &#39;<br/>&#39;;
//2、php获取昨日起始时间戳和结束时间戳

$beginYesterday = mktime(0,0,0,date(&#39;m&#39;),date(&#39;d&#39;)-1,date(&#39;Y&#39;));
$endYesterday = mktime(0,0,0,date(&#39;m&#39;),date(&#39;d&#39;),date(&#39;Y&#39;))-1;

echo $beginYesterday.&#39;---&#39;.$endYesterday;
echo &#39;<br/>&#39;;
//3、php获取上周起始时间戳和结束时间戳

$beginLastweek=mktime(0,0,0,date(&#39;m&#39;),date(&#39;d&#39;)-date(&#39;w&#39;)+1-7,date(&#39;Y&#39;));
$endLastweek=mktime(23,59,59,date(&#39;m&#39;),date(&#39;d&#39;)-date(&#39;w&#39;)+7-7,date(&#39;Y&#39;));

echo $beginLastweek.&#39;---&#39;.$endLastweek;
echo &#39;<br/>&#39;;

//4、php获取本月起始时间戳和结束时间戳

$beginThismonth=mktime(0,0,0,date(&#39;m&#39;),1,date(&#39;Y&#39;));
$endThismonth=mktime(23,59,59,date(&#39;m&#39;),date(&#39;t&#39;),date(&#39;Y&#39;));

echo $beginThismonth.&#39;---&#39;.$endThismonth;
echo &#39;<br/>&#39;;


//PHP mktime() 函数用于返回一个日期的 Unix 时间戳。
//语法:mktime(hour,minute,second,month,day,year,is_dst)
//
//参数    描述
//hour    可选。规定小时。
//minute    可选。规定分钟。
//second    可选。规定秒。
//month    可选。规定用数字表示的月。
//day    可选。规定天。
//year    可选。规定年。在某些系统上,合法值介于 1901 - 2038 之间。不过在 PHP 5 中已经不存在这个限制了。
//is_dst可选。如果时间在日光节约时间(DST)期间,则设置为1,否则设置为0,若未知,则设置为-1。
//自 5.1.0 起,is_dst 参数被废弃。因此应该使用新的时区处理特性。参数总是表示 GMT 日期,因此 is_dst 对结果没有影响。
//
//参数可以从右到左依次空着,空着的参数会被设为相应的当前 GMT 值。

echo(date("M-d-Y",mktime(0,0,0,12,36,2001)));

//将输出结果如:
//
//Jan-05-2002
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The above is the entire content of this article, I hope it will be helpful to everyone's study.


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