Repositories configuration:

On Fedora, standards repositories are enough, on Enterprise Linux (RHEL, CentOS) the Extra Packages for Enterprise Linux (EPEL) repository must be configured, and on RHEL the optional channel must be enabled.

Fedora 23

wget http://rpms.remirepo.net/fedora/remi-release-23.rpm
dnf install remi-release-23.rpm

RHEL version 7.2

wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
wget http://rpms.remirepo.net/enterprise/remi-release-7.rpm
rpm -Uvh remi-release-7.rpm epel-release-latest-7.noarch.rpm
subscription-manager repos --enable=rhel-7-server-optional-rpms

RHEL version 6.7

wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
wget http://rpms.remirepo.net/enterprise/remi-release-6.rpm
rpm -Uvh remi-release-6.rpm epel-release-latest-6.noarch.rpm
rhn-channel --add --channel=rhel-$(uname -i)-server-optional-6

CentOS version 7.2

wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
wget http://rpms.remirepo.net/enterprise/remi-release-7.rpm
rpm -Uvh remi-release-7.rpm epel-release-latest-7.noarch.rpm

CentOS version 6.7

wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
wget http://rpms.remirepo.net/enterprise/remi-release-6.rpm
rpm -Uvh remi-release-6.rpm epel-release-latest-6.noarch.rpm

 

remi-php70 repository activation

Needed packages are in the remi-safe (enabled by default) and remi-php70 repositories, the latest is not enabled by default (administrator choice according to the desired PHP version).

RHEL et CentOS

yum-config-manager --enable remi-php70

Fedora

dnf config-manager --set-enabled remi-php70

 

PHP upgrade

By choice, the packages have the same name than in the distribution, so a simple update is enough:

yum update

That's all :)

$ php -v
PHP 7.0.3 (cli) (built: Feb  3 2016 10:09:48) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
    with Xdebug v2.4.0RC4, Copyright (c) 2002-2016, by Derick Rethans

 

Known issues

The upgrade can fail (by design) when some installed extensions are not yet compatible with  PHP 7.

See the compatibility tracking list: PECL extensions RPM status

If these extensions are not mandatory, you can remove them before the upgrade, else, you will have to be patient.

Warning: some extensions are still under development (memcache, redis...), but it seems useful to provide them to allow upgrade to more people, and to allow user to give feedback to the authors.

 

More d'information

If you prefer to install PHP 7 beside PHP 5, this can be achieve using the php70 prefixed packages, see the PHP 7.0 as Software Collection post.

You can also try the configuration wizard.

The packages available in the repository will be used as source for Fedora 25 (system wide change proposal is not yet registered).

By providing a full feature PHP stack, with about 150 available extensions, 4 PHP versions, as base and SCL packages, for Fedora and Enterprise Linux, and with 100 000 download per day, remi repository became in the last 10 years a reference for PHP users on RPM based distributions, maintained by an active contributor to the projects (Fedora, PHP, PECL...).

See also: