PHP Fatal error: Class #39;Dotenv#39; not found in(PHP 致命错误:在中找不到类“Dotenv)

Autoload My Classes with Sub-Namespaces (Composer.json)(使用子命名空间自动加载我的类 (Composer.json))

Composer autoloader + slim framework - fatal error: Class #39;SlimSlim#39; not found?(Composer autoloader + slim framework - 致命错误:找不到类SlimSlim?)

Doctrine error: Class #39;DoctrineORMEntityRepository#39; not found(教义错误:找不到类 DoctrineORMEntityRepository)

composer does not autoload(作曲家不自动加载)

Uncaught Error quot;Class not foundquot; in Laravel 5.8(未捕获的错误“找不到类在 Laravel 5.8 中)

PSR4 Composer Autoloading namespaces(PSR4 Composer 自动加载命名空间)

How to develop a dependent composer package without the need to commit or publish changes?(如何在不需要提交或发布更改的情况下开发依赖的composer包?)

Can#39;t install composer due to certificate issues(由于证书问题无法安装作曲家)

How does PSR-4 autoloading work in composer for custom libraries?(PSR-4 自动加载如何在 composer 中为自定义库工作?)

The quot;https://getcomposer.org/versionsquot; file could not be downloaded: SSL operation failed with code 1. OpenSSL Error messages: error: 1416F086(“https://getcomposer.org/versions无法下载文件:SSL 操作失败，代码为 1.OpenSSL 错误消息:错误:1416F086)

Composer installing: the json extension is missing(Composer 安装:缺少 json 扩展)

But these conflict with your requirements or minimum-stability(但是这些与您的要求或最低稳定性相冲突)

PHP Composer Autoloader Class not Found Exception(PHP Composer Autoloader 类未找到异常)

Composer install Error in argument 1, char 2: option not found r(作曲家安装参数 1 中的错误，字符 2:找不到选项 r)

Use php 7 to run composer, but install packages for php 5(使用 php 7 运行 composer，但为 php 5 安装包)

How does the keyword quot;usequot; work in PHP and can I import classes with it?(关键字“使用如何?在 PHP 中工作，我可以用它导入类吗?)

How to import/include a CSS file using PHP code and not HTML code?(如何使用 PHP 代码而不是 HTML 代码导入/包含 CSS 文件?)

Importing classes and namespaces in PHP: What difference does a leading backslash make?(在 PHP 中导入类和命名空间:前导反斜杠有什么区别?)

Regex to conditionally replace Twitter hashtags with hyperlinks(正则表达式有条件地用超链接替换 ​​Twitter 标签)