Home Backend Development PHP Tutorial Detailed explanation of data examples for querying the current day, querying this week, and querying this month using php and mysql

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

May 26, 2018 am 11:17 AM
mysql php

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; )
Copy after login

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
Copy after login

The above is the entire content of this article, I hope it will be helpful to everyone's study.


Related recommendations:

php How to get the time

JS implementationGetting timeAnd setting countdown code sharing

jqueryGetting timeMethod summary

The above is the detailed content of Detailed explanation of data examples for querying the current day, querying this week, and querying this month using php and mysql. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

MySQL: An Introduction to the World's Most Popular Database MySQL: An Introduction to the World's Most Popular Database Apr 12, 2025 am 12:18 AM

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP's Current Status: A Look at Web Development Trends PHP's Current Status: A Look at Web Development Trends Apr 13, 2025 am 12:20 AM

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

Why Use MySQL? Benefits and Advantages Why Use MySQL? Benefits and Advantages Apr 12, 2025 am 12:17 AM

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

PHP: The Foundation of Many Websites PHP: The Foundation of Many Websites Apr 13, 2025 am 12:07 AM

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.

MySQL's Place: Databases and Programming MySQL's Place: Databases and Programming Apr 13, 2025 am 12:18 AM

MySQL's position in databases and programming is very important. It is an open source relational database management system that is widely used in various application scenarios. 1) MySQL provides efficient data storage, organization and retrieval functions, supporting Web, mobile and enterprise-level systems. 2) It uses a client-server architecture, supports multiple storage engines and index optimization. 3) Basic usages include creating tables and inserting data, and advanced usages involve multi-table JOINs and complex queries. 4) Frequently asked questions such as SQL syntax errors and performance issues can be debugged through the EXPLAIN command and slow query log. 5) Performance optimization methods include rational use of indexes, optimized query and use of caches. Best practices include using transactions and PreparedStatemen

PHP: A Key Language for Web Development PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP vs. Python: Core Features and Functionality PHP vs. Python: Core Features and Functionality Apr 13, 2025 am 12:16 AM

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

See all articles