CENTOS 7平滑升级PHP到最新版7.3

1.确认你当前安装的php版本：

php -v

2.安装Remi和EPEL数据源（仓库）

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.启用Remi

vi /etc/yum.repos.d/remi.repo

4.更改[remi]区域的代码块为如下，相同则不用更改

[remi]
name=Remi's RPM repository for Enterprise Linux 7 - $basearch
#baseurl=http://rpms.remirepo.net/enterprise/7/remi/$basearch/
#mirrorlist=https://rpms.remirepo.net/enterprise/7/remi/httpsmirror
mirrorlist=http://cdn.remirepo.net/enterprise/7/remi/mirror
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi

5.启用Remi PHP7.3数据源

vi /etc/yum.repos.d/remi-php73.repo6.

6.更改[remi-php73]区域的代码块为如下

[remi-php73]
name=Remi's PHP 7.3 RPM repository for Enterprise Linux 7 - $basearch
#baseurl=http://rpms.remirepo.net/enterprise/7/php73/$basearch/
mirrorlist=https://rpms.remirepo.net/enterprise/7/php73/httpsmirror
mirrorlist=http://cdn.remirepo.net/enterprise/7/php73/mirror
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi

7.升级php到php7.3

yum -y upgrade php*

8.检查php版本

php -v

输出如下则表示更新成功

PHP 7.3.5 (cli) (built: Apr 30 2019 08:37:17) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.5, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.5, Copyright (c) 1999-2018, by Zend Technologies

9.重启php-fpm

systemctl restart php-fpm