Debian 10 升級 php 至 7.4

升級環境 : Debian GNU/Linux 10 \n \l
原本安裝 php 7.3

進行已安裝套件更新
```
apt update
apt upgrade -y
```

下載 PHP 7.4 的 Sury PPA 與設定

apt -y install lsb-release apt-transport-https ca-certificates wget
wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg
echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" | tee /etc/apt/sources.list.d/php.list

Apache 環境安裝 PHP 7.4

apt update
apt install php7.4
php -v
a2dismod php7.3
a2enmod php7.4

可以至 /etc/apache2/mods-enabled 看是否已經切換為 php7.4
重新啟動 apache2
```
service apache2 restart
```

php相關套件的安裝

原有 php 7.3 所安裝的套件也需要配合安裝 php 7.4 版本相對套件

查詢已安裝的套件清單

apt list --installed | grep php

php7.3-cli/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-common/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-curl/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-gd/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-json/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-mbstring/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-mysql/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-opcache/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-readline/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-xml/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.3-zip/oldoldstable,now 7.3.31-1~deb10u4 amd64 [installed,upgradable to: 7.3.33-11+0~20230612.108+debian10~1.gbp1f186d]
php7.4-cli/buster,now 1:7.4.33-6+0~20230609.83+debian10~1.gbp32abef amd64 [installed,automatic]
php7.4-common/buster,now 1:7.4.33-6+0~20230609.83+debian10~1.gbp32abef amd64 [installed,automatic]
php7.4-json/buster,now 1:7.4.33-6+0~20230609.83+debian10~1.gbp32abef amd64 [installed,automatic]
php7.4-opcache/buster,now 1:7.4.33-6+0~20230609.83+debian10~1.gbp32abef amd64 [installed,automatic]
php7.4-readline/buster,now 1:7.4.33-6+0~20230609.83+debian10~1.gbp32abef amd64 [installed,automatic]
php7.4/buster,now 1:7.4.33-6+0~20230609.83+debian10~1.gbp32abef all [installed]

發現還有 curl, gd, mbstring mysql xml zip 套件需要安裝

apt install php7.4-curl php7.4-gd php7.4-mbstring php7.4-mysql php7.4-xml php7.4-zip

安裝後重啟 apache2
```
service apache2 restart
```

https://www.cloudbooklet.com/install-php-7-4-on-debian-10/

php

Debian 10 升級 php 至 7.4

升級程序

參考網址