========== INSTALL PHP V5.6 KEATAS ==========
yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
atau;
yum install epel-release yum-utils -y

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

# yum-config-manager --enable remi-php55   [Install PHP 5.5]
# yum-config-manager --enable remi-php56   [Install PHP 5.6]
# yum-config-manager --enable remi-php72   [Install PHP 7.2]
# yum-config-manager --enable remi-php73   [Install PHP 7.3]
# yum-config-manager --enable remi-php74   [Install PHP 7.4]

yum install php php-mcrypt php-cli php-gd php-curl php-mysql php-ldap php-zip php-fileinfo

# php -v
==========
Cara memeriksa file .ini :
cd /etc/php-zts.d/;ls -al
cd /etc/php.d/;ls -al

========== INSTALL LEVELDB ==========
yum -y install leveldb
yum -y install php-pecl-leveldb
==========