默认会安装php8.3

安装 PHP7.4

sudo apt update
sudo apt upgrade -y
sudo apt install software-properties-common -y

# 添加 PHP 存储库
LC_ALL=C.UTF-8 sudo add-apt-repository ppa:ondrej/php -y
sudo apt update

# 安装
sudo apt install php8.3 -y
sudo apt install php8.2 -y
sudo apt install php7.4 -y


# 安装扩展
sudo apt install phpX.X-extension_name

# 示例安装 Redis 扩展
sudo apt install php7.4-redis