Title: PHP strict standards warnings
Last modified: August 21, 2016

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# PHP strict standards warnings

 *  Resolved [archon810](https://wordpress.org/support/users/archon810/)
 * (@archon810)
 * [11 years, 10 months ago](https://wordpress.org/support/topic/php-strict-standards-warnings/)
 *     ```
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  call_user_func_array() expects parameter 1 to be a valid callback, non-static method anchor_utils::ob_start() should not be called statically in /srv/www/htdocs/dev.site.com/wp-includes/plugin.php on line 470
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  call_user_func_array() expects parameter 1 to be a valid callback, non-static method anchor_utils::filter() should not be called statically in /srv/www/htdocs/dev.site.com/wp-includes/plugin.php on line 192
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::escape() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 124
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::escape_callback() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 248
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::escape_callback() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 248
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::filter_callback() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 132
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::unescape() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 134
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  call_user_func_array() expects parameter 1 to be a valid callback, non-static method anchor_utils::filter() should not be called statically in /srv/www/htdocs/dev.site.com/wp-includes/plugin.php on line 192
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::escape() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 124
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::escape_callback() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 248
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::escape_callback() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 248
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::filter_callback() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 132
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::filter_callback() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 132
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::parse_anchor() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 153
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  call_user_func_array() expects parameter 1 to be a valid callback, non-static method external_links::filter() should not be called statically in /srv/www/htdocs/dev.site.com/wp-includes/plugin.php on line 192
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method external_links::is_local_url() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/sem-external-links.php on line 58
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::build_anchor() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 162
       [11-Jul-2014 19:05:00 UTC] PHP Strict Standards:  Non-static method anchor_utils::unescape() should not be called statically in /srv/www/htdocs/dev.site.com/wp-content/plugins/sem-external-links/anchor-utils/anchor-utils.php on line 134
       ```
   
 * etc
 * [https://wordpress.org/plugins/sem-external-links/](https://wordpress.org/plugins/sem-external-links/)

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

 *  Plugin Author [Mike Koepke](https://wordpress.org/support/users/mike_koepke/)
 * (@mike_koepke)
 * [11 years, 10 months ago](https://wordpress.org/support/topic/php-strict-standards-warnings/#post-5089898)
 * Are you using the latest 5.5.4 version?
 *  Thread Starter [archon810](https://wordpress.org/support/users/archon810/)
 * (@archon810)
 * [11 years, 10 months ago](https://wordpress.org/support/topic/php-strict-standards-warnings/#post-5089899)
 * Apologies, I’m an idiot. I was using a dev server which still had v4 running.
   After the update, there are no strict standards warnings anymore.

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

The topic ‘PHP strict standards warnings’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/sem-external-links.svg)
 * [External Links](https://wordpress.org/plugins/sem-external-links/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/sem-external-links/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/sem-external-links/)
 * [Active Topics](https://wordpress.org/support/plugin/sem-external-links/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/sem-external-links/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/sem-external-links/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [archon810](https://wordpress.org/support/users/archon810/)
 * Last activity: [11 years, 10 months ago](https://wordpress.org/support/topic/php-strict-standards-warnings/#post-5089899)
 * Status: resolved