我们在安装composer-setup.exe时遇到以下错误：
Connection Error [ERR_CONNECTION]: Unable to connect to getcomposer.org
Proxy http://proxy.mycompany.com:1234 [from Internet Settings] failed with errors:
Failed to open stream: HTTP request failed! HTTP/1.0 407 Proxy Authorization Required
Request to http://getcomposer.org/installer failed with errors:
Failed to open stream: No connection could be made because the target machine actively refused it.
我的项目环境详情
php.ini：
请帮助我们为Laravel Framework安装Composer-Setup.exe。