php实现转换为日期的方法:1、使用“strtotime()”函数将日期转换为UNIX时间戳;2、使用“date()”函数将UNIX时间戳转换为日期;3、通过“echo date("Y-m-d H:i:s",$day_time)”输出转换日期即可。
本教程操作环境:Windows10系统、PHP8.1版、DELL G3电脑
php怎么实现转换为日期?
php中日期类型转换实例讲解
1、使用date()函数将UNIX时间戳转换为日期。
2、使用strtotime()函数将日期转换为UNIX时间戳。
在PHP中是可以完成日期格式转换的,不过有一个缺点就是占用PHP解析器的解析时间,因此速度会相对慢一些。但是这种方式也有优点,那就是不管是不是数据库中查询获得的数据都可以进行转换,转换范围不受限制。
实例
$y=date("Y",time()); //年 $m=date("m",time()); //月 $d=date("d",time()); //日 echo $y." "; echo $m." "; echo $d." "; $eight_clock = mktime(8, 0, 0, $m, $d ,$y); //每天8点 echo date("Y-m-d H:i:s",$eight_clock)." "; $day_time = mktime(0, 0, 0, $m, 1 ,$y); //每月1号 echo date("Y-m-d H:i:s",$day_time)." ";
实例扩展:
// convert a date into a string that tells how long ago // that date was.... eg: 2 days ago, 3 minutes ago. function ago($d) { $c = getdate(); $p = array('year', 'mon', 'mday', 'hours', 'minutes', 'seconds'); $display = array('year', 'month', 'day', 'hour', 'minute', 'second'); $factor = array(0, 12, 30, 24, 60, 60); $d = datetoarr($d); for ($w = 0; $w < 6; $w++) { if ($w > 0) { $c[$p[$w]] += $c[$p[$w-1]] * $factor[$w]; $d[$p[$w]] += $d[$p[$w-1]] * $factor[$w]; } if ($c[$p[$w]] - $d[$p[$w]] > 1) { return ($c[$p[$w]] - $d[$p[$w]]).' '.$display[$w].'s ago'; } } return ''; } // you can replace this if need be. // This converts my dates returned from a mysql date string // into an array object similar to that returned by getdate(). function datetoarr($d) { preg_match("/([0-9]{4})(\\-)([0-9]{2})(\\-)([0-9]{2})([0-9]{2})(\\:)([0-9]{2})(\\:)([0-9]{2})/",$d,$matches); return array( 'seconds' => $matches[10], 'minutes' => $matches[8], 'hours' => $matches[6], 'mday' => $matches[5], 'mon' => $matches[3], 'year' => $matches[1], ); }
推荐学习:《PHP视频教程》
The above is the detailed content of How to convert to date in php. For more information, please follow other related articles on the PHP Chinese website!

The article compares ACID and BASE database models, detailing their characteristics and appropriate use cases. ACID prioritizes data integrity and consistency, suitable for financial and e-commerce applications, while BASE focuses on availability and

The article discusses securing PHP file uploads to prevent vulnerabilities like code injection. It focuses on file type validation, secure storage, and error handling to enhance application security.

Article discusses best practices for PHP input validation to enhance security, focusing on techniques like using built-in functions, whitelist approach, and server-side validation.

The article discusses strategies for implementing API rate limiting in PHP, including algorithms like Token Bucket and Leaky Bucket, and using libraries like symfony/rate-limiter. It also covers monitoring, dynamically adjusting rate limits, and hand

The article discusses the benefits of using password_hash and password_verify in PHP for securing passwords. The main argument is that these functions enhance password protection through automatic salt generation, strong hashing algorithms, and secur

The article discusses OWASP Top 10 vulnerabilities in PHP and mitigation strategies. Key issues include injection, broken authentication, and XSS, with recommended tools for monitoring and securing PHP applications.

The article discusses strategies to prevent XSS attacks in PHP, focusing on input sanitization, output encoding, and using security-enhancing libraries and frameworks.

The article discusses the use of interfaces and abstract classes in PHP, focusing on when to use each. Interfaces define a contract without implementation, suitable for unrelated classes and multiple inheritance. Abstract classes provide common funct


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

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment