1.卸载所有已安装的php

yum remove -y php*

2.执行

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

rpm -Uvh https://rpms.remirepo.net/enterprise/remi-release-7.rpm

3.单独安装php8.2

yum-config-manager –disable ‘remi-php*’

yum-config-manager –enable remi-php82

提示 yum-config-manager 找不到（yum-config-manager: command not found）：

yum -y install yum-utils

提示

vi /usr/bin/yum-config-manager

#!/usr/bin/python -tt

改成

#!/usr/bin/python2 -tt*

4.安装php以及扩展 yum install -y php php-bcmath php-cli php-common php-devel php-fpm php-gd php-intl php-ldap php-mbstring php-mysqlnd php-odbc php-pdo php-pear php-pecl-xmlrpc php-pecl-zip php-process php-snmp php-soap php-sodium php-xml

5.重启apache，到phpinfo中查看php版本

systemctl restart nginx

systemctl start php-fpm