Title: Strange error message – trim() expects parameter 1
Last modified: February 20, 2017

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# Strange error message – trim() expects parameter 1

 *  [angeljs](https://wordpress.org/support/users/angeljs/)
 * (@angeljs)
 * [9 years, 2 months ago](https://wordpress.org/support/topic/strange-error-message-9/)
 * I’m receiving a strange error message in my error log:
 * `PHP Warning: trim() expects parameter 1 to be string, array given in /home/******/
   public_html/wp/wp-content/plugins/category-icons/category_icons.php on line 447`
 * Here is that line:
 * `if (trim($string) == 'Easily assign icons to your categories.') {`

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 * 0 replies
 * 1 participant
 * Last reply from: [angeljs](https://wordpress.org/support/users/angeljs/)
 * Last activity: [9 years, 2 months ago](https://wordpress.org/support/topic/strange-error-message-9/)
 * Status: not resolved