Fatal Error Unknown format specifier

[marcinkrzeminski]

Bug Report

https://wordpress.org/support/topic/fatal-error-unknown-format-specifier-2/
https://wordpress.org/support/topic/fatal-error-when-saving-the-seo-title-meta-with-in-the-post-title/

Expected Behavior

Describe what should happen.

Actual Behavior

I’ve seen others post this same error but the topic was closed with no response or solution given. We are getting the following error when publishing at times

[29-Jan-2024 23:22:06 UTC] PHP Fatal error: Uncaught ValueError: Unknown format specifier “O” in */public_html/wp-content/plugins/stream/classes/class-log.php:127
Stack trace: 0 */public_html/wp-content/plugins/stream/classes/class-log.php(127): vsprintf(‘Updated “conten…’, Array) 1 [internal function]: WP_Stream\Log->log(‘wordpressseo’, ‘Updated “conten…’, Array, 9072, ‘wpseo_meta’, ‘updated’, 21156) 2 */public_html/wp-content/plugins/stream/classes/class-connector.php(178): call_user_func_array(Array, Array) 3 */public_html/wp-content/plugins/stream/connectors/class-connector-wordpress-seo.php(433): WP_Stream\Connector->log(‘Updated “conten…’, Array, 9072, ‘wpseo_meta’, ‘updated’) 4 */public_html/wp-content/plugins/stream/connectors/class-connector-wordpress-seo.php(368): WP_Stream\Connector_WordPress_SEO->meta(9072, ‘_yoast_wpseo_co…’, ’30’) 5 [internal function]: WP_Stream\Connector_WordPress_SEO->callback_updated_post_meta(NULL, 9072, ‘_yoast_wpseo_co…’, ’30’) 6 */public_html/wp-content/plugins/stream/classes/class-connector.php(127): call_user_func_array(Array, Array) 7 */public_html/wp-includes/class-wp-hook.php(324): WP_Stream\Connector->callback(‘1253795’, 9072, ‘_yoast_wpseo_co…’, ’30’) 8 */public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) 9 */public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) 10 */public_html/wp-includes/meta.php(336): do_action(‘updated_post_me…’, ‘1253795’, 9072, ‘_yoast_wpseo_co…’, ’30’) 11 */public_html/wp-includes/post.php(2558): update_metadata(‘post’, 9072, ‘_yoast_wpseo_co…’, ’30’, ”) 12 */public_html/wp-content/plugins/wordpress-seo/inc/class-wpseo-meta.php(717): update_post_meta(9072, ‘_yoast_wpseo_co…’, ’30’) 13 */public_html/wp-content/plugins/wordpress-seo/admin/metabox/class-metabox.php(806): WPSEO_Meta::set_value(‘content_score’, ’30’, 9072) 14 */public_html/wp-includes/class-wp-hook.php(326): WPSEO_Metabox->save_postdata(9072) 15 */public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) 16 */public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) 17 */public_html/wp-includes/post.php(4771): do_action(‘wp_insert_post’, 9072, Object(WP_Post), true) 18 */public_html/wp-includes/post.php(4862): wp_insert_post(Array, false, true) 19 */public_html/wp-admin/includes/post.php(453): wp_update_post(Array) 20 */public_html/wp-admin/post.php(227): edit_post() 21 {main

I’m facing an issue similar to this https://wordpress.org/support/topic/your-site-is-experiencing-a-technical-issue-85/. I actually managed to reproduce the issue I’m going to mention below in an empty site with just Stream and Yoast SEO (free) installed.

When those two plugins are activated, if a post has the “%” character in its title, and the user is also changing the Yoast SEO title for that post, the attempt to save the Yoast SEO metabox throws a PHP Error

[15-Jan-2024 11:33:23 UTC] PHP Fatal error: Uncaught ValueError: Unknown format specifier “”” in D:\XYZ\LocalSites\stream\app\public\wp-content\plugins\stream\classes\class-log.php:127
Stack trace: 0 D:\XYZ\LocalSites\stream\app\public\wp-content\plugins\stream\classes\class-log.php(127): vsprintf(‘Updated “SEO ti…’, Array) 1 [internal function]: WP_Stream\Log->log(‘wordpressseo’, ‘Updated “SEO ti…’, Array, 5, ‘wpseo_meta’, ‘updated’, 1) 2 D:\XYZ\LocalSites\stream\app\public\wp-content\plugins\stream\classes\class-connector.php(178): call_user_func_array(Array, Array) 3 D:\XYZ\LocalSites\stream\app\public\wp-content\plugins\stream\connectors\class-connector-wordpress-seo.php(433): WP_Stream\Connector->log(‘Updated “SEO ti…’, Array, 5, ‘wpseo_meta’, ‘updated’) 4 D:\XYZ\LocalSites\stream\app\public\wp-content\plugins\stream\connectors\class-connector-wordpress-seo.php(368): WP_Stream\Connector_WordPress_SEO->meta(5, ‘_yoast_wpseo_ti…’, ‘%%title%% %%pag…’) 5 [internal function]: WP_Stream\Connector_WordPress_SEO->callback_updated_post_meta(NULL, 5, ‘_yoast_wpseo_ti…’, ‘%%title%% %%pag…’) 6 D:\XYZ\LocalSites\stream\app\public\wp-content\plugins\stream\classes\class-connector.php(127): call_user_func_array(Array, Array) 7 D:\XYZ\LocalSites\stream\app\public\wp-includes\class-wp-hook.php(324): WP_Stream\Connector->callback(’17’, 5, ‘_yoast_wpseo_ti…’, ‘%%title%% %%pag…’) 8 D:\XYZ\LocalSites\stream\app\public\wp-includes\class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) 9 D:\XYZ\LocalSites\stream\app\public\wp-includes\plugin.php(517): WP_Hook->do_action(Array) 10 D:\XYZ\LocalSites\stream\app\public\wp-includes\meta.php(336): do_action(‘updated_post_me…’, ’17’, 5, ‘_yoast_wpseo_ti…’, ‘%%title%% %%pag…’) 11 D:\XYZ\LocalSites\stream\app\public\wp-includes\post.php(2558): update_metadata(‘post’, 5, ‘_yoast_wpseo_ti…’, ‘%%title%% %%pag…’, ”) 12 D:\XYZ\LocalSites\stream\app\public\wp-content\plugins\wordpress-seo\inc\class-wpseo-meta.php(717): update_post_meta(5, ‘_yoast_wpseo_ti…’, ‘%%title%% %%pag…’) 13 D:\XYZ\LocalSites\stream\app\public\wp-content\plugins\wordpress-seo\admin\metabox\class-metabox.php(799): WPSEO_Meta::set_value(‘title’, ‘%%title%% %%pag…’, 5) 14 D:\XYZ\LocalSites\stream\app\public\wp-includes\class-wp-hook.php(326): WPSEO_Metabox->save_postdata(5) 15 D:\XYZ\LocalSites\stream\app\public\wp-includes\class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) 16 D:\XYZ\LocalSites\stream\app\public\wp-includes\plugin.php(517): WP_Hook->do_action(Array) 17 D:\XYZ\LocalSites\stream\app\public\wp-includes\post.php(4771): do_action(‘wp_insert_post’, 5, Object(WP_Post), true) 18 D:\XYZ\LocalSites\stream\app\public\wp-includes\post.php(4862): wp_insert_post(Array, false, true) 19 D:\XYZ\LocalSites\stream\app\public\wp-admin\includes\post.php(453): wp_update_post(Array) 20 D:\XYZ\LocalSites\stream\app\public\wp-admin\post.php(227): edit_post() 21 {main}
thrown in D:\XYZ\LocalSites\stream\app\public\wp-content\plugins\stream\classes\class-log.php on line 127

Steps to Reproduce the Problem

Screenshots

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System Information

• Stream plugin version:
• WordPress version:
• PHP version:
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