Title: PHP Strict Standards Warning
Last modified: August 30, 2016

---

# PHP Strict Standards Warning

 *  [Ren Ventura](https://wordpress.org/support/users/engagewp/)
 * (@engagewp)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/php-strict-standards-warning-3/)
 * I’ve noticed Subscribe to Comments plugin loading up my debug.log file with PHP
   Strict Standards warnings. It seems to be just three lines in the main plugin
   file:
 *     ```
       PHP Strict Standards:  Only variables should be assigned by reference in /public_html/wp-content/plugins/subscribe-to-comments/subscribe-to-comments.php on line 767
       PHP Strict Standards:  Only variables should be assigned by reference in /public_html/wp-content/plugins/subscribe-to-comments/subscribe-to-comments.php on line 590
       PHP Strict Standards:  Only variables should be assigned by reference in /public_html/wp-content/plugins/subscribe-to-comments/subscribe-to-comments.php on line 1047
       ```
   
 * [https://wordpress.org/plugins/subscribe-to-comments/](https://wordpress.org/plugins/subscribe-to-comments/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [juggledad](https://wordpress.org/support/users/juggledad/)
 * (@juggledad)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/php-strict-standards-warning-3/#post-6415801)
 * same here although I only see it on line 590
 *  [leejosepho](https://wordpress.org/support/users/leejosepho/)
 * (@leejosepho)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/php-strict-standards-warning-3/#post-6415858)
 * > same here although I only see it on line 590
 * Same here:
 * `Strict Standards: Only variables should be assigned by reference in ~~~\wp-content\
   plugins\subscribe-to-comments\subscribe-to-comments.php on line 590`

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘PHP Strict Standards Warning’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/subscribe-to-comments.svg)
 * [Subscribe to Comments](https://wordpress.org/plugins/subscribe-to-comments/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/subscribe-to-comments/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/subscribe-to-comments/)
 * [Active Topics](https://wordpress.org/support/plugin/subscribe-to-comments/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/subscribe-to-comments/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/subscribe-to-comments/reviews/)

 * 2 replies
 * 3 participants
 * Last reply from: [leejosepho](https://wordpress.org/support/users/leejosepho/)
 * Last activity: [10 years, 9 months ago](https://wordpress.org/support/topic/php-strict-standards-warning-3/#post-6415858)
 * Status: not resolved