====== 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

===== 升級程序 =====
  - 進行已安裝套件更新 <cli>
apt update
apt upgrade -y
</cli>
  - 下載 PHP 7.4 的 Sury PPA 與設定<cli>
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
</cli>
  - Apache 環境安裝 PHP 7.4<cli>
apt update
apt install php7.4
php -v
a2dismod php7.3
a2enmod php7.4
</cli>
  - 可以至 /etc/apache2/mods-enabled 看是否已經切換為 php7.4
  - 重新啟動 apache2 <cli>
service apache2 restart
</cli>

<note>
  * **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 <cli>
apt list --installed | grep php
</cli><file>
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]
</file>
    * 發現還有 curl, gd, mbstring mysql xml zip 套件需要安裝 <cli>
apt install php7.4-curl php7.4-gd php7.4-mbstring php7.4-mysql php7.4-xml php7.4-zip
</cli>
    * 安裝後重啟 apache2 <cli>
service apache2 restart
</cli>
</note>

===== 參考網址 =====
  * https://www.cloudbooklet.com/install-php-7-4-on-debian-10/

{{tag>php}}