1. Verify current version of PHP
Type in the following to see the current PHP version:
php -v
Should output something like:
PHP 5.3.3 (cli) (built: Jul 9 2015 17:39:00)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
Great, now we can move on!
2. Install the Remi and EPEL RPM repositories
If you haven’t already done so, install the Remi and EPEL repositories
wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm && rpm -Uvh epel-release-latest-6.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm && rpm -Uvh remi-release-6*.rpm
Enable the REMI repository globally:
nano /etc/yum.repos.d/remi.repo
Under the section that looks like [remi] make the following changes:
[remi]
name=Remi’s RPM repository for Enterprise Linux 6 – $basearch
#baseurl=http://rpms.remirepo.net/enterprise/6/remi/$basearch/
mirrorlist=http://rpms.remirepo.net/enterprise/6/remi/mirror
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi
Also, under the section that looks like [remi-php55] make the following changes:
[remi-php56]
name=Remi’s PHP 5.6 RPM repository for Enterprise Linux 6 – $basearch
#baseurl=http://rpms.remirepo.net/enterprise/6/php56/$basearch/
mirrorlist=http://rpms.remirepo.net/enterprise/6/php56/mirror
# WARNING: If you enable this repository, you must also enable “remi”
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi
Type CTRL-O to save and CTRL-X to close the editor
3. Upgrade PHP 5.3 to PHP 5.6
Now we can upgrade PHP. Simply type in the following command:
yum -y upgrade php*
Once the update has completed, let’s verify that you have PHP 5.6 installed:
php -v
Should see output similar to the following:
PHP 5.6.14 (cli) (built: Sep 30 2015 14:07:43)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies
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