我已经在 Debian 9 服务器（实际上是一个 docker 容器）上安装了 PHP 7.2 并安装了一些 php 模块。
但是当我到达gd并且pdo/mysql apt找不到任何包时：
$apt install php-pdo
Package php-pdo is a virtual package provided by:
php7.3-common 7.3.0-2 [Not candidate version]
php7.0-common 7.0.33-0+deb9u1 [Not candidate version]
php7.0-common 7.0.30-0+deb9u1 [Not candidate version]
我的 sources.list 文件如下所示：
cat /etc/apt/sources.list
deb http://deb.debian.org/debian stretch main
deb http://security.debian.org/debian-security stretch/updates main
deb http://deb.debian.org/debian stretch-updates main
deb https://packages.sury.org/php/ stretch main
deb https://packages.sury.org/apache2/ stretch main
我浏览了许多网站，推荐不同的东西，其中许多都建议添加 ondrej/php PPA，我认为这只适合 Ubuntu 系统。
PS：我尝试通过 PHP 运行的软件有以下要求：
- PDO PHP 扩展
笔记我对包有同样的问题php7.2-mysql
$apt-get install php7.2-mysql
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package php7.2-mysql
E: Couldn't find any package by glob 'php7.2-mysql'
E: Couldn't find any package by regex 'php7.2-mysql'
编辑2：这是我的输出apt-get update（在apt-get clean清除缓存的命令之后）：
apt-get update
Ign:1 http://deb.debian.org/debian stretch InRelease
Hit:2 http://repo.mysql.com/apt/debian stretch InRelease
Hit:3 http://deb.debian.org/debian stretch-updates InRelease
Hit:4 http://security.debian.org/debian-security stretch/updates InRelease
Hit:5 http://security.debian.org/debian-security buster/updates InRelease
Ign:6 http://deb.debian.org/debian strecht InRelease
Hit:7 http://deb.debian.org/debian buster InRelease
Hit:8 http://deb.debian.org/debian buster-updates InRelease
Hit:9 http://deb.debian.org/debian stretch Release
Ign:10 http://deb.debian.org/debian strecht Release
Ign:11 http://deb.debian.org/debian strecht/main Sources
Ign:11 http://deb.debian.org/debian strecht/main Sources
Ign:11 http://deb.debian.org/debian strecht/main Sources
Ign:11 http://deb.debian.org/debian strecht/main Sources
Ign:11 http://deb.debian.org/debian strecht/main Sources
Err:11 http://deb.debian.org/debian strecht/main Sources
404 Not Found
Reading package lists... Done
W: The repository 'http://deb.debian.org/debian strecht Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://deb.debian.org/debian/dists/strecht/main/source/Sources 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
答案1
没有这样的包，因为 PDO 嵌入在提供 SQL 模块的包中：
Package: php7.2-mysql
Description: MySQL module for PHP
This package provides the MySQL module(s) for PHP.
Provides: php-mysqli, php-mysqlnd, php-pdo-mysql,
php7.2-mysqli, php7.2-mysqlnd, php7.2-pdo-mysql
Package: php7.2-pgsql
Description: PostgreSQL module for PHP
This package provides the PostgreSQL module(s) for PHP.
Provides: php-pdo-pgsql, php-pgsql, php7.2-pdo-pgsql
还请注意，这些不是来自 Debian 9 Stretch 的软件包，仅有PHP 7.0。它们来自Sury.orgdeb https://packages.sury.org/php/ stretch main您已添加的存储库。