The default version of yum source is too low, and there are some troubles in manual installation. If you want to use Yum to update and install, you can use the following solution:
1. Check the currently installed PHP packages
yum list installed | grep php
If there are installed PHP packages, remove them first
yum remove php.x86_64 php-cli.x86_64 php-common.x86_64 php-gd.x86_64 php-ldap.x86_64 php-mbstring.x86_64 php-mcrypt.x86_64 php-mysql.x86_64 php-pdo.x86_64
2. Replace the rpm source
Centos 5.X：
rpm -Uvh http://mirror.webtatic.com/yum/el5/latest.rpm
CentOs 6.x：
rpm -Uvh http://mirror.webtatic.com/yum/el6/latest.rpm
CentOs 7.X：
rpm -Uvh https://mirror.webtatic.com/yum/el7/epel-release.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
If you want to remove the package installed above, reinstall it
rpm -qa | grep webstatic rpm -e The package searched above can be
3. Run yum install
php5.5
yum install php55w.x86_64 php55w-cli.x86_64 php55w-common.x86_64 php55w-gd.x86_64 php55w-ldap.x86_64 php55w-mbstring.x86_64 php55w-mcrypt.x86_64 php55w-mysql.x86_64 php55w-pdo.x86_64
php5.6
yum install php56w.x86_64 php56w-cli.x86_64 php56w-common.x86_64 php56w-gd.x86_64 php56w-ldap.x86_64 php56w-mbstring.x86_64 php56w-mcrypt.x86_64 php56w-mysql.x86_64 php56w-pdo.x86_64- 1
php7.0
yum install php70w.x86_64 php70w-cli.x86_64 php70w-common.x86_64 php70w-gd.x86_64 php70w-ldap.x86_64 php70w-mbstring.x86_64 php70w-mcrypt.x86_64 php70w-mysql.x86_64 php70w-pdo.x86_64
4. Install PHP FPM
yum install php55w-fpm yum install php56w-fpm yum install php70w-fpm systemctl enable php-fpm.service [self-start at boot]
This update can be completed by upgrading the PHP version!