Configuring Composer Mirrors for Alibaba Cloud, Tencent Cloud, Huawei Cloud, and Other Chinese Repositories

Composer Mirrors Overview

Composer is essential for PHP developers, but using it in China can encounter connectivity issues, so many domestic mirrors are available.

Available Mirrors

Alibaba Cloud Composer Mirror – https://developer.aliyun.com/composer

Tencent Cloud Composer Mirror – https://mirrors.cloud.tencent.com/composer/

Huawei Cloud Composer Mirror – https://mirrors.huaweicloud.com/repository/php/

Anchang Network Mirror – https://php.cnpkg.org

SJTU Mirror – https://packagist.mirrors.sjtug.sjtu.edu.cn

Packagist JP – https://packagist.jp

Global Configuration (Recommended)

All projects will use the specified mirror address:

composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/

To remove the global configuration:

composer config --unset repos.packagist

Project‑Specific Configuration

Only the current project will use the mirror:

composer config repo.packagist composer https://mirrors.aliyun.com/composer/

To cancel the project configuration:

composer config --unset repos.packagist

Debugging

Increase verbosity with -vvv to see detailed output, e.g.:

composer -vvv require alibabacloud/sdk

Common Issues & Solutions

Upgrade Composer to the latest version: composer self-update

Run diagnostics: composer diagnose

Clear Composer cache: composer clear

If the project was previously installed from another source, update the composer.lock file: composer update --lock

For more details, refer to the official documentation of each mirror provider.