How to get time in php
This article introduces the method of obtaining time in php
$year = date("Y");// 年 2018 如果“Y” 小写,输出是年份简写,如:2018年,输出是:18
$month =date("m");// 月 2 如果“M” 大写,输出是英文月份,小写是数字
$day =date("d");// 日$week =date("l");// 星期几
$last_month_days = cal_days_in_month(CAL_GREGORIAN, $month-1,$year);// 上一月的天数 $month = date("m")
$now_month_days = cal_days_in_month(CAL_GREGORIAN, $month,$year);// 当年月的天数; $month = date("m")
cal_days_in_month 的公用:返回某个历法中某年中某月的天数
$next_month_days=cal_days_in_month(CAL_GREGORIAN,$month+1,$year);
if($year%4==0 && $now_month_days==28){
$now_month_days = $now_month_days+1;// 判断当前月是不闰年,是的话 2月加一天,即29天
}
$week_date = date("w",strtotime("2018-2-5")); // 字符串指定日期获得星期几
$week_date = date("w",strtotime(date("Y-m-d))); // 变量指定日期获得星期几
$week_date = date("w",strtotime($year."-".$month."-"."1"));//拼接字符串指定每月 1 号期,获得星期几
cal_days_in_month 的公用:返回某个历法中某年中某月的天数Parameter introduction:
cal_days_in_month(par1,par2,$par3);
$par1: used for calculation A certain calendar, PHP Calendar constant
par2: Parameter par1 selects a certain month in the calendar
$par3: Selects a certain year in the calendar
Return value:
$par1 The number of days in a certain year and month of the selected calendar
PHP Calendar constants: The calendar extension contains functions that simplify conversion between different calendar formats.
In order for these functions to work, you must compile PHP with –enable-calendar. Under window, support for calendar extension has been integrated.
The constant CAL_GREGORIAN in the case is a PHP predefined constant, just like constants such as PHP_OS.
gregorian means: Gregorian calendar; Gregorian calendar
This article introduces the method of obtaining time in php. For more related content, please pay attention to php Chinese website.
Related recommendations:
php object-oriented selection sorting example explanation
PHP skills: cleverly use json_encode() to js Array assignment
Features and syntax instructions of PHP and XML technology
The above is the detailed content of How to get time in php. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1384
52
PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian
Dec 24, 2024 pm 04:42 PM
PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati
How To Set Up Visual Studio Code (VS Code) for PHP Development
Dec 20, 2024 am 11:31 AM
Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c
7 PHP Functions I Regret I Didn't Know Before
Nov 13, 2024 am 09:42 AM
If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op
How do you parse and process HTML/XML in PHP?
Feb 07, 2025 am 11:57 AM
This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
Explain JSON Web Tokens (JWT) and their use case in PHP APIs.
Apr 05, 2025 am 12:04 AM
JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,
PHP Program to Count Vowels in a String
Feb 07, 2025 pm 12:12 PM
A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total
Explain late static binding in PHP (static::).
Apr 03, 2025 am 12:04 AM
Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.
What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases?
Apr 03, 2025 am 12:03 AM
What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.


