1、laravel实现的生产环境跟开发环境配置分离
通常我们会把配置文件所需要的参数放在/config下面的目录中,这个文件夹下面的所有文件都会自动加载,我们使用config(文件名+”.”+配置项)的方式进行访问,但是直接修改config下面文件的配置会很麻烦,例如我们生产环境跟开发环境不同,这就比较麻烦了,可laravel很便捷的给我们解决了这个方法,我们开发环境在根目录配置.env文件,config里面的配置都通过读取.env的方式来实现配置的自由切换,好了,我们完成了一个比较方便的事情
2、如何实现一些比较固定参数的后台配置
我们日常开发系统一些不是经常会变的东西,比方说网站设置,邮箱配置,第三方登录配置。这些配置我们希望通过后台修改后我们的程序能够像读配置文件一样来读,省去了我们每初始化一套系统都得手动去修改参数配置(假设我们系统是一套一套的卖给他人的)。
这个时候中间件用上了,我们可以建立一个中间件,例如app/Http/Middleware/ResetConfig.php,然后把这个中间件放到app/Http/Kernel.php中的protected $middleware数组里面,我们就可以实现写入的配置文件读取到config中
ResetConfig.php
public function handle($request, Closure $next){ $json_datas = $arr_datas = null; // email $file_path = storage_path('app/email.data'); if(file_exists($file_path)) { $json_datas = file_get_contents($file_path); $json_datas && $arr_datas = json_decode($json_datas, true); $arr_datas && config(['mail' => array_merge(config('mail'), $arr_datas)]); } $json_datas = $arr_datas = null; // msg $file_path = storage_path('app/msg.data'); if(file_exists($file_path)) { $json_datas = file_get_contents($file_path); $json_datas && $arr_datas = json_decode($json_datas, true); $arr_datas && config(['msg' => $arr_datas]); } return $next($request);}
Kernel.php
protected $middleware = [ \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class, \App\Http\Middleware\ResetConfig::class, \App\Http\Middleware\Cors::class, //解决跨域];
这样我们在开发程序的时候只用把文件写入到app/email.data中就可以实现了,我们的其他程序通过config方法就可以及时访问到我们修改的配置了。

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

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 originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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

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

Hot Article

Hot Tools

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

SublimeText3 English version
Recommended: Win version, supports code prompts!

SublimeText3 Chinese version
Chinese version, very easy to use

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software