PHP输出英文时间日期的安全方法(RFC 1123格式)_PHP
最近项目中要为一个rest服务写客户端,其中的签名校验需要在HTTP Header中生成一个RFC 1123格式的Date。
这个问题比较好解决,简单翻阅了PHP文档,使用gmstrftime这个函数就能解决。
复制代码 代码如下:
string gmstrftime ( string $format [, int $timestamp = time() ] )
调用的代码如下:
复制代码 代码如下:
echo gmstrftime("%a, %d %b %Y %T %Z",time());
//输出:Tue, 01 Apr 2014 16:16:07 GMT
调试过程中发现,在另外一台电脑上,输出并不像预期中的结果,然后产生了中文:
复制代码 代码如下:
二, 01 4 2014 16:20:02 GMT
继续翻阅文档,发现文档的注释中有说明,这个函数的结果受setlocale结果的影响,既收当前系统默认的语言的影响。使用下面的命令可以查看当前系统已安装的语言:
复制代码 代码如下:
locale -a
那么根据刚刚分析的结果,将setlocale强制指定为英语就没问题了,代码如下:
复制代码 代码如下:
setlocale(LC_TIME, 'en_US');
echo gmstrftime("%a, %d %b %Y %T %Z",time());
至此文章应该已经结束了,不过可惜的是测试用的Ubuntu机器上,因为是Live CD版,恰好没有en_US这个语言,但是有一个en_US.UTF-8。这个时候心理打鼓,这种做法似乎不太安全,我没办法确定运行代码的客户机上,到底有en_US还是有en_US.UTF-8。还好看到文档里的一段comments,可以用gmdate来代替,该函数不受setlocale结果的影响:
复制代码 代码如下:
gmdate('D, d M Y H:i:s') . ' GMT';
Case closed~需求虽小,要写好并不容易,以后还要多加努力。

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



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

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

To work on file upload we are going to use the form helper. Here, is an example for file upload.

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

CakePHP is an open source MVC framework. It makes developing, deploying and maintaining applications much easier. CakePHP has a number of libraries to reduce the overload of most common tasks.

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

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,

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
