Upgrade CentOS php7.2.24 to php7.3

1、 Delete PHP 7.2.24 And related modules
https://www.jianshu.com/p/affcf885d1f7

2、 install epel-release 7 edition

yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm

https://www.jianshu.com/p/1882cd3b2295

notes ：EPEL, namely Extra Packages for Enterprise Linux For short , It's for the enterprise class Linux A set of high-quality extra packages , Including but not limited to Red Hat Enterprise Linux (RHEL), CentOS and Scientific Linux (SL), Oracle Enterprise Linux (OEL).( About : EPEL)

3、 install PHP 7.3
https://blog.csdn.net/laohe08/article/details/93166590

4、Linux Create a soft connection –ln -s

[[email protected]-20-2-centos data]# which php73
/usr/bin/php73
[[email protected]-20-2-centos data]# ln -s /usr/bin/php73 /usr/bin/php
[[email protected]-20-2-centos data]# php --version
PHP 7.3.33 (cli) (built: Jun  7 2022 08:45:21) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.33, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.33, Copyright (c) 1999-2018, by Zend Technologies