Title: PHP-upgrade
Last modified: August 20, 2016

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# PHP-upgrade

 *  [mcbo](https://wordpress.org/support/users/mcbo/)
 * (@mcbo)
 * [14 years, 3 months ago](https://wordpress.org/support/topic/php-upgrade/)
 * Hi,
 * I have five WordPress-installations on my server. One is open to the public and
   the other ones are modified installations, used to create newsfeeds for clients.
 * I want to upgrade the public WordPress-installation from 3.1.4 to the newest 
   3.3. However, I still have PHP-version 5.1.6. My hosting provider can upgrade
   it to 5.2.10-1.
 * I don’t want to upgrade the other WordPress-installations.
 * Is it safe to upgrade to the newer PHP-version or will there be any conflicts
   with my (older) WordPress-installations?
 * Thanks in advance!

The topic ‘PHP-upgrade’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 0 replies
 * 1 participant
 * Last reply from: [mcbo](https://wordpress.org/support/users/mcbo/)
 * Last activity: [14 years, 3 months ago](https://wordpress.org/support/topic/php-upgrade/)
 * Status: not resolved

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