Title: PHP warning
Last modified: December 7, 2021

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# PHP warning

 *  [John](https://wordpress.org/support/users/dsl225/)
 * (@dsl225)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/php-warning-323/)
 * Getting this warning, server on PHP 7.3:
 * > PHP Warning: array_merge(): Expected parameter 1 to be an array, null given
   > in /wp-content/plugins/wp-performance/includes/functions/settings.php on line
   > 256

The topic ‘PHP warning’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [John](https://wordpress.org/support/users/dsl225/)
 * Last activity: [4 years, 5 months ago](https://wordpress.org/support/topic/php-warning-323/)
 * Status: not resolved