Title: PHP 7 Compatibility Issues
Last modified: January 25, 2017

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# PHP 7 Compatibility Issues

 *  [Contempo Creative Inc.](https://wordpress.org/support/users/contempoinc/)
 * (@contempoinc)
 * [9 years, 3 months ago](https://wordpress.org/support/topic/php-7-compatibility-issues-3/)
 * Noticed there are some weird PHP 7 compatibility issues, not sure if you guys
   were aware of this or not just wanted to give you a heads up since a lot of managed
   WP hosts will have upgraded (WP Engine) being one.
 * Had one of my theme buyers report this:
 * > Error following an upgrade to PHP7….Following migration and upgrade to PHP7
   > trying to access “customize theme” and “widgets” throws an error as follows:–
   > Error thrown
   > Call to undefined function mysql_query()
 * > Hi Forget my last. It seems that a plugin called Co-Authors Plus was the cause
   > of the problem. Now disabled we have access to widgets and customize.
 * They’re running on PHP 7 with WP Engine an WordPress 4.7.1

Viewing 1 replies (of 1 total)

 *  [PCS Web Hosting LLC](https://wordpress.org/support/users/wetapplemedia/)
 * (@wetapplemedia)
 * [9 years, 3 months ago](https://wordpress.org/support/topic/php-7-compatibility-issues-3/#post-8721998)
 * My install of Co Authors 3.2.1 runs just fine with PHP 7.0.15 and WordPress 4.7.2.

Viewing 1 replies (of 1 total)

The topic ‘PHP 7 Compatibility Issues’ is closed to new replies.

 * ![](https://ps.w.org/co-authors-plus/assets/icon-256x256.png?rev=2945095)
 * [Co-Authors Plus](https://wordpress.org/plugins/co-authors-plus/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/co-authors-plus/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/co-authors-plus/)
 * [Active Topics](https://wordpress.org/support/plugin/co-authors-plus/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/co-authors-plus/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/co-authors-plus/reviews/)

## Tags

 * [PHP7](https://wordpress.org/support/topic-tag/php7/)

 * 1 reply
 * 2 participants
 * Last reply from: [PCS Web Hosting LLC](https://wordpress.org/support/users/wetapplemedia/)
 * Last activity: [9 years, 3 months ago](https://wordpress.org/support/topic/php-7-compatibility-issues-3/#post-8721998)
 * Status: not resolved