進(jìn)入 composer.json 文件所在目錄執(zhí)行以下命令（表示只改變當(dāng)前項(xiàng)目的 composer 鏡像服務(wù)）：

composer config repo.packagist composer https://packagist.phpcomposer.com

執(zhí)行完后，composer.json 文件將變?yōu)椋?/p>

{
    ......
    "repositories": {
        "packagist": {
            "type": "composer",
            "url": "https://packagist.phpcomposer.com"
        }
    }
}