Title: Undefined array key “HTTP_USER_AGENT”
Last modified: April 27, 2022

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# Undefined array key “HTTP_USER_AGENT”

 *  [Brian Henry](https://wordpress.org/support/users/brianhenryie/)
 * (@brianhenryie)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/undefined-array-key-http_user_agent/)
 * `PHP Warning: Undefined array key "HTTP_USER_AGENT" in /path/to/wp-content/plugins/
   country-redirect/country-redirect.php on line 297`
 * I presume this is happening on cron or wp cli.
 * I added a check for `! isset( $_SERVER['HTTP_USER_AGENT'] )` beforehand.

The topic ‘Undefined array key “HTTP_USER_AGENT”’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [Brian Henry](https://wordpress.org/support/users/brianhenryie/)
 * Last activity: [4 years, 1 month ago](https://wordpress.org/support/topic/undefined-array-key-http_user_agent/)
 * Status: not resolved