Title: HTTP_USER_AGENT Error
Last modified: June 28, 2022

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# HTTP_USER_AGENT Error

 *  [mperry8304](https://wordpress.org/support/users/mperry8304/)
 * (@mperry8304)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/http_user_agent-error/)
 * Hello, I noticed an error log at the root of my WordPress site. The error relates
   to WPtouch. “Undefined array key “HTTP_USER_AGENT” in …wp-content/plugins/wptouch/
   core/class-wptouch-pro.php on line 2775″
 * The plugin seems to be working fine despite the error.
 * I’m using WPtouch Version 4.3.41, WordPress 6 and PHP 8.0.16.
 * Any help would be appreciated.

Viewing 1 replies (of 1 total)

 *  [Sara Patricia](https://wordpress.org/support/users/sarapatricia/)
 * (@sarapatricia)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/http_user_agent-error/#post-16009370)
 * This is just a warning, nothing serious, but even with WPtouch 4.3.44 the issue
   has not been resolved.
 * [https://www.php.net/manual/en/language.types.array.php](https://www.php.net/manual/en/language.types.array.php)
   says: “Attempting to access an array key which has not been defined is the same
   as accessing any other undefined variable: an E_WARNING-level error message (
   E_NOTICE-level prior to PHP 8.0.0) will be issued, and the result will be null.”

Viewing 1 replies (of 1 total)

The topic ‘HTTP_USER_AGENT Error’ is closed to new replies.

 * ![](https://ps.w.org/wptouch/assets/icon-256x256.png?rev=1313960)
 * [WPtouch - Make your WordPress Website Mobile-Friendly](https://wordpress.org/plugins/wptouch/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Sara Patricia](https://wordpress.org/support/users/sarapatricia/)
 * Last activity: [3 years, 8 months ago](https://wordpress.org/support/topic/http_user_agent-error/#post-16009370)
 * Status: not resolved