Title: Multiple ‘array to string conversion’ warnings caused by plugin
Last modified: March 23, 2025

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# Multiple ‘array to string conversion’ warnings caused by plugin

 *  Resolved [jamminjames](https://wordpress.org/support/users/jamminjames/)
 * (@jamminjames)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/multiple-array-to-string-conversion-warnings-caused-by-plugin/)
 * Please notify OneSignal plugin coders of this problem.
 * We’re getting a lot of PHP warnings, caught by the Query Monitor plugin, caused
   by OneSignal plugin:
 *     ```wp-block-code
       Warning Array to string conversion, 8xwp-includes/formatting.php:1096wp_check_invalid_utf8()esc_attr()sanitize_post_field()WP_Post->__get()onesignal_metabox()do_meta_boxes()Plugin: onesignal-free-web-push-notifications
       ```
   

Viewing 1 replies (of 1 total)

 *  Thread Starter [jamminjames](https://wordpress.org/support/users/jamminjames/)
 * (@jamminjames)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/multiple-array-to-string-conversion-warnings-caused-by-plugin/#post-18418150)
 * I believe this has been fixed. Thanks!

Viewing 1 replies (of 1 total)

The topic ‘Multiple ‘array to string conversion’ warnings caused by plugin’ is closed
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   =3003897)
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## Tags

 * [Array to String Conversion](https://wordpress.org/support/topic-tag/array-to-string-conversion/)
 * [PHP Warning](https://wordpress.org/support/topic-tag/php-warning/)

 * 1 reply
 * 1 participant
 * Last reply from: [jamminjames](https://wordpress.org/support/users/jamminjames/)
 * Last activity: [1 year, 1 month ago](https://wordpress.org/support/topic/multiple-array-to-string-conversion-warnings-caused-by-plugin/#post-18418150)
 * Status: resolved