Title: Array to string conversion PHP errors
Last modified: April 2, 2025

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# Array to string conversion PHP errors

 *  Resolved [jamminjames](https://wordpress.org/support/users/jamminjames/)
 * (@jamminjames)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/array-to-string-conversion-php-errors/)
 * I posted about a slow query a few days ago, and you folks fixed it, thanks!
 * Here is another problem. We’re getting multiple warnings like this when editing
   a post. Not sure if it appears on the public side, but it looks like it needs
   addressing:
 * `Warning: Array to string conversion
   wp-includes/formatting.php:1096wp_check_invalid_utf8()
   esc_attr()sanitize_post_field()WP_Post->__get()onesignal_metabox()do_meta_boxes()

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [jamminjames](https://wordpress.org/support/users/jamminjames/)
 * (@jamminjames)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/array-to-string-conversion-php-errors/#post-18418077)
 * Can I get a reply to this? The plugin authors were so quick to address a previous
   issue caused by the plugin, I may have gotten spoiled 😉 … but this is an issue
   that should be fixed. Thanks.
 *  Plugin Support [jon1signal](https://wordpress.org/support/users/jon1signal/)
 * (@jon1signal)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/array-to-string-conversion-php-errors/#post-18428393)
 * Hi there, this is on our TODO list. We hope to have it resolved soon.
 *  Plugin Support [jon1signal](https://wordpress.org/support/users/jon1signal/)
 * (@jon1signal)
 * [1 year ago](https://wordpress.org/support/topic/array-to-string-conversion-php-errors/#post-18440242)
 * Hello, thank you for your patience.
 * Our plugin version [3.2.0](https://github.com/OneSignal/OneSignal-WordPress-Plugin/releases/tag/v3.2.0)
   fixes several issues:
   ​– checkbox on non-allowed custom post types and pages
 * – array of string error
 * Please let us know if you have any further issues or questions. Happy to help!

Viewing 3 replies - 1 through 3 (of 3 total)

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## Tags

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

 * 3 replies
 * 2 participants
 * Last reply from: [jon1signal](https://wordpress.org/support/users/jon1signal/)
 * Last activity: [1 year ago](https://wordpress.org/support/topic/array-to-string-conversion-php-errors/#post-18440242)
 * Status: resolved