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# Installing PHP 5.4 on RHEL 6 and CentOS 6

Red Hat Enterprise Linux and CentOS 6 still ship with PHP 5.3. ownCloud requires PHP 5.4 or better. There are several third-party repositories that supply PHP 5.4, but you must use the Software Collections (SCL) repository to be in compliance with your RHEL support contract, and not any other third-party repository.

## RHEL 6

Follow these steps to install PHP 5.4 from SCL. First you must use your Subscription Manager to enable SCL:

    subscription-manager repos --enable rhel-server-rhscl-6-eus-rpms

Then install PHP 5.4 and these modules:

    yum install php54 php54-php php54-php-gd php54-php-mbstring

You must also install the updated database module for your database. This example installs the new PHP 5.4 module for MySQL/MariaDB:

    yum install php54-php-mysqlnd

Disable loading the old PHP 5.3 Apache module:

    mv /etc/httpd/conf.d/php.conf /etc/httpd/conf.d/php53.off

You should now have a /etc/httpd/conf.d/php54-php.conf file, which loads the correct PHP 5.4 module for Apache.

Then restart Apache:

    service httpd restart

Verify with PHP Version and Information that your Apache server is using PHP 5.4 and loading the correct modules.

## CentOS 6

First install the SCL repo:

    yum install centos-release-SCL

Then install PHP 5.4 and these modules:

    yum install php54 php54-php php54-php-gd php54-php-mbstring

You must also install the updated database module. This installs the new PHP 5.4 module for MySQL/MariaDB:

    yum install php54-php-mysqlnd

Disable loading the old PHP 5.3 Apache module:

    mv /etc/httpd/conf.d/php.conf /etc/httpd/conf.d/php53.off

You should now have a /etc/httpd/conf.d/php54-php.conf file, which loads the correct PHP 5.4 module for Apache.

Finally, restart Apache:

    service httpd restart

Verify with PHP Version and Information that your Apache server is using PHP 5.4 and loading the correct modules.

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