How to upgrade PHP and MySQL in CentOS system

Use yum to update php, just use one command to do it:

#yum update php

But the problem is coming. After using this command, the system told me that no available code was found. Updated package. The current PHP version is only 5.2.1, and PHP has been officially updated to 5.2.6.
After some inquiries, I found out that the source of php in the original centos system is still 5.2.1, and additional sources are needed to upgrade php.
According to the introduction of foreign netizens, Binggu added additional sources:
After logging in to ssh, run the following commands in sequence:

#rpm –import http://www.jasonlitka.com /media/rpm-gpg-key-jlitka

#vi /etc/yum.repos.d/utterramblings.repo # Nano is used here in the article, but vps cannot start nano. It is also possible to use vi instead. Yes

Add the following content to the open document:

[utterramblings]
name=jason's utter ramblings repo
baseurl=http://www.jasonlitka.com/ media/el$releasever/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://www.jasonlitka.com/media/rpm-gpg-key-jlitka

save.
Run the following command again to complete the php upgrade

#yum update php

Similarly, run the following command to upgrade mysql

#yum update mysql

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