Table of Contents
回复内容:
Home Backend Development PHP Tutorial php strtotime是否有bug

php strtotime是否有bug

Jun 06, 2016 pm 08:39 PM
php strtotime

<code>$beginMon=strtotime("-1 week Monday");
$endMon=strtotime("-1 week Tuesday")-1;
echo date("Y-m-d H:i:s", $beginMon);
echo('<br>');
echo date("Y-m-d H:i:s", $endMon);
echo("<br>");

//上面是获取本周一的开始与结束时间戳
//结果如下:
//2015-01-05 00:00:00(错误)
//2014-12-29 23:59:59(正确)

$beginSun=strtotime("+0 week Sunday");
$endSun=strtotime("+1 week Monday")-1;
echo date("Y-m-d H:i:s", $beginSun)."<br>";
echo date("Y-m-d H:i:s",$endSun)."<br>";

//上面获取的是本周末的开始与结束时间戳
//结果如下:
//2015-01-04 00:00:00
//2015-01-11 23:59:59(错误)

//以上案例都是在今天测试(非周末 因为周末)
</code>
Copy after login
Copy after login

回复内容:

<code>$beginMon=strtotime("-1 week Monday");
$endMon=strtotime("-1 week Tuesday")-1;
echo date("Y-m-d H:i:s", $beginMon);
echo('<br>');
echo date("Y-m-d H:i:s", $endMon);
echo("<br>");

//上面是获取本周一的开始与结束时间戳
//结果如下:
//2015-01-05 00:00:00(错误)
//2014-12-29 23:59:59(正确)

$beginSun=strtotime("+0 week Sunday");
$endSun=strtotime("+1 week Monday")-1;
echo date("Y-m-d H:i:s", $beginSun)."<br>";
echo date("Y-m-d H:i:s",$endSun)."<br>";

//上面获取的是本周末的开始与结束时间戳
//结果如下:
//2015-01-04 00:00:00
//2015-01-11 23:59:59(错误)

//以上案例都是在今天测试(非周末 因为周末)
</code>
Copy after login
Copy after login

你可以通过阅读相关实现源码来理解为什么会有这样的结果:php_date.c 和 parse_date.c。

另外还可以阅读 官方文档 和 常用时期处理参考 来看看如何实践。

每星期的七天,'sunday' | 'monday' | 'tuesday' | 'wednesday' | 'thursday' | 'friday' | 'saturday' | 'sun' | 'mon' | 'tue' | 'wed' | 'thu' | 'fri' | 'sat' | 'sun' 应该是以当前时间往后推 7 * 24 小时来考量的。本例中,如果你想特指本周的某个星期一,你可以使用 strtotime("-1 week Monday this week"); ,其它的天,类似地,指定是在哪个自然周内(本例即 this week 指定为本自然周),不要让系统自己按自己默认的逻辑处理即可。

注意:回答问题时是周二。

这个并不是bug,php的官方手册中其实就提到过与之类似的一些情况。有些情况下出现strtotime("1 months")并不是下个月,而是下下个月了。具体可以翻一下文档手册.就知道为什么这么处理了。

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

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

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)

Hot Topics

Java Tutorial
1670
14
PHP Tutorial
1274
29
C# Tutorial
1256
24
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: Understanding the Differences PHP vs. Python: Understanding the Differences Apr 11, 2025 am 12:15 AM

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

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 in Action: Real-World Examples and Applications PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

The Enduring Relevance of PHP: Is It Still Alive? The Enduring Relevance of PHP: Is It Still Alive? Apr 14, 2025 am 12:12 AM

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP and Python: Different Paradigms Explained PHP and Python: Different Paradigms Explained Apr 18, 2025 am 12:26 AM

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP vs. Other Languages: A Comparison PHP vs. Other Languages: A Comparison Apr 13, 2025 am 12:19 AM

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python: Code Examples and Comparison PHP and Python: Code Examples and Comparison Apr 15, 2025 am 12:07 AM

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

See all articles