Please see '[[yum_plugin_replace|yum replace]]' for installing the correct package
=== Upgrading PHP ===
The following guide will use yum-plugin-replace to upgrade php.
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=== WARNING! ===
Before upgrading, please make sure plesk is NOT installed
<sxh bash>
service psa status
</sxh>
<sxh bash>
rpm -qa | grep -i 'psa\|plesk'
</sxh>
IF you run the following guide and plesk IS installed, it will remove the 'php-psa' module which will fully remove plesk from your device!!!
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1 )
**Note:** **__BACKUP__** php.ini file before you do anything!
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<sxh bash>
cp /etc/php.ini{,.$(date +%Y-%m-%d).back}
</sxh>
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2 ) Check version currently installed:
<sxh bash>
php -v
</sxh>
<sxh bash>
PHP 5.3.3 (cli) (built: Oct 30 2014 20:12:53)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
</sxh>
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3) Find package you wish to upgrade to:
<sxh bash>
# yum info php56u.x86_64 | grep -i 'name\|version\|release\|size'

Name        : php56u
Version     : 5.6.15
Release     : 1.ius.el6
Size        : 2.7 M
</sxh>
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4) 
php -m > /home/php-modulebackup
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5)
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You will not be able to simply install the new package, it will conflict with lots of installed packages.
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What we need to do it 'replace' packages (Note: you may need to run yum-complete-transaction first).
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<sxh bash>
yum replace php --replace-with=php56u
</sxh>
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6) 
<sxh bash>
php -m > /home/php-modulebackupUpgrade
</sxh>
<sxh bash>
diff the two file
</sxh>