PHP 5.4 on CentOS 6.7

yum install centos-release-SCL
yum install php54-php-mbstring php54-php-pdo php54-php-xml php54-php-mysql php54-php-gd php54-php-fpm php54 php54-php-int php54-php-xmlrpc php54-php-imap php54-php-intl

PHP Path: /opt/rh/php54/root/etc

service php54-php-fpm start
service nginx start