Install PHP 5.5 on Centos 7 - centos7

Question

I have a Centos 7 server running apache 2.4.6 and php 5.4. I'm trying to install Magento 2 on my server for a client but am having issues.
I need to have PHP 5.5 or 5.6 installed on my server for Magento 2 to run. I cannot figure out how to upgrade to PHP 5.5 or PHP 5.6.
I don't know the difference between the two versions, so I'll take whatever I can get working !
Thanks :)

Answer 1

This is the procedure for PHP 5.6.
I was able to upgrade PHP 5.4.16 on CENTOS7 to version 5.6.25 with these simple steps. Important to note that i used the Software Collection Repositories.
1- Install All these new packages:
yum install centos-release-scl
yum install rh-php56
yum install rh-php56-php
yum install rh-php56-php-pdo
yum install rh-php56-php-devel
yum install rh-php56-php-mysql
yum install rh-php56-php-fpm
2- Make apache 2.4 use php-fpm
Edit that file: /etc/httpd/conf.d/php.conf
Put that content:
<FilesMatch \.php$>
# SetHandler application/x-httpd-php
SetHandler "proxy:fcgi://127.0.0.1:9000"
</FilesMatch>
3- Reboot services to handle php-fpm:
systemctl restart rh-php56-php-fpm
systemctl restart httpd
4- Enabling rh-php56-php-fpm service on boot time
systemctl enable rh-php56-php-fpm
systemctl enable httpd
5- Create a symlink for the new php version.
mv /usr/bin/php /usr/bin/phpOLD
ln -s /opt/rh/rh-php56/root/bin/php /usr/bin/php

Answer 2

Run this in your terminal:
wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-7.rpm
rpm -Uvh remi-release-7*.rpm epel-release-7*.rpm
Then :
sudo yum install php php-gd php-mysql php-mcrypt
and you should have php 5.5

Answer 3

This is the procedure for PHP 7.3
I was able to upgrade PHP 5.4.16 on CENTOS7 to version 7.3.11 with these simple steps. Important to note that i used the Software Collection Repositories.
1- install this alone
yum install centos-release-scl
2- then run this
yum install rh-php73
yum install rh-php73-php
yum install rh-php73-php-pdo
yum install rh-php73-php-devel
yum install rh-php73-php-mysqlnd
yum install rh-php73-php-fpm
3- Edit that file: /etc/httpd/conf.d/php.conf Put that content:
<FilesMatch \.php$>
# SetHandler application/x-httpd-php
SetHandler "proxy:fcgi://127.0.0.1:9000"
</FilesMatch>
4- Reboot services to handle php-fpm:
systemctl restart rh-php73-php-fpm
systemctl restart httpd
5- Enabling rh-php73-php-fpm service on boot time
systemctl enable rh-php73-php-fpm
systemctl enable httpd
6- Create a symlink for the new php version.
mv /usr/bin/php /usr/bin/phpOLD
ln -s /opt/rh/rh-php73/root/bin/php /usr/bin/php

Answer 4

Steps (Use sudo only if required)
1) Remove OLD Apache
sudo service httpd stop
sudo yum erase httpd httpd-tools apr apr-util
2) Remove OLD PHP
sudo yum remove php-*
if it´s a clean installation start from here:
3) Install PHP 5.6 (Apache 2.4 will be automatically installed with this)
sudo yum install php56
4) Make sure all the required PHP extensions are installed
yum list installed | grep php
5) If not then install them using
sudo yum install php56-xml php56-xmlrpc php56-soap php56-gd
6) To list the other available php extensions
yum search php56
7) PHP 5.6 MySQL extension (Assume you have already installed MySQL)
sudo yum install php56-mysqlnd
(NOTE: it is not php56-mysql)
8) Start / Restart Apache
sudo service httpd start
sudo service httpd restart
9) Check the version
php -v
httpd -v