Title: php error log lines
Last modified: January 14, 2022

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# php error log lines

 *  Resolved [heel1](https://wordpress.org/support/users/heel1/)
 * (@heel1)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/php-error-log-lines/)
 * Goodday,
 * Just wanted to report that in the php log it generates many lines:
    The is_ajax
   function is deprecated since version 6.1.0. Replace with wp_doing_ajax. Seems
   to be used in util.php and ajax.php files.
 * Thanks

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [John Blackbourn](https://wordpress.org/support/users/johnbillion/)
 * (@johnbillion)
 * WordPress Core Developer
 * [4 years, 4 months ago](https://wordpress.org/support/topic/php-error-log-lines/#post-15254382)
 * Thanks for the report. `is_ajax()` isn’t a WordPress function, it’s a Query Monitor
   class method. I think this error is coming from somewhere else, and WordPress
   isn’t at version 6.1 yet.
 *  Thread Starter [heel1](https://wordpress.org/support/users/heel1/)
 * (@heel1)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/php-error-log-lines/#post-15262039)
 * Hi John,
    It might solve itself then and/or nothing to worry about. The error
   is for a fact also triggered by others plugins. When I searched the server for
   is ajax also query monitor came in the results. The info I found is in this printscreen:
   [https://ibb.co/c8GnMKV](https://ibb.co/c8GnMKV) Thanks, Tijmen

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘php error log lines’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [heel1](https://wordpress.org/support/users/heel1/)
 * Last activity: [4 years, 4 months ago](https://wordpress.org/support/topic/php-error-log-lines/#post-15262039)
 * Status: resolved