Title: Can't configure; error about undefined function date_diff()
Last modified: September 1, 2016

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# Can't configure; error about undefined function date_diff()

 *  Resolved [FSCG](https://wordpress.org/support/users/fscg/)
 * (@fscg)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/cant-configure-error-about-undefined-function-date_diff/)
 * After installing Ultimate Social Media PLUS, the configuration page comes up,
   but the wheel just keeps spinning and spinning. Using a Firefox plugin to remove
   the spinning wheel layer, a page with all the options laid out serially is revealed,
   although nothing works. However, at the bottom of the page is an error message
   stating:
 * “Fatal error: Call to undefined function date_diff() in /home/content/i/n/d/redacted/
   html/redacted/wp-content/plugins/ultimate-social-media-plus/libs/controllers/
   sfsi_socialhelper.php on line 506”
 * I’m guessing the issue is that the PHP is out of date (older than 5.3), but as
   a customer of a website builder who is a customer of a hosting service, I only
   have access to WordPress on this site, so I can’t update much. Is the date_diff
   function really needed? Hopefully you guys can easily word around this issue 
   and release an update that will work.
 * [https://wordpress.org/plugins/ultimate-social-media-plus/](https://wordpress.org/plugins/ultimate-social-media-plus/)

Viewing 1 replies (of 1 total)

 *  [socialdude](https://wordpress.org/support/users/socialdude/)
 * (@socialdude)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/cant-configure-error-about-undefined-function-date_diff/#post-7668866)
 * Hi FSCG, yes, then it’s the PHP version. We need PHP 5.4 or above. Cannot you
   suggest your client to upgrade? It’s also suggested for security purposes etc.

Viewing 1 replies (of 1 total)

The topic ‘Can't configure; error about undefined function date_diff()’ is closed
to new replies.

 * ![](https://ps.w.org/ultimate-social-media-plus/assets/icon-128x128.png?rev=2230338)
 * [Social Share Icons & Social Share Buttons](https://wordpress.org/plugins/ultimate-social-media-plus/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/ultimate-social-media-plus/#faq)
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 * 1 reply
 * 2 participants
 * Last reply from: [socialdude](https://wordpress.org/support/users/socialdude/)
 * Last activity: [9 years, 9 months ago](https://wordpress.org/support/topic/cant-configure-error-about-undefined-function-date_diff/#post-7668866)
 * Status: resolved