Title: PHP notice in error log.
Last modified: August 21, 2016

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# PHP notice in error log.

 *  [NettSite](https://wordpress.org/support/users/nettsite/)
 * (@nettsite)
 * [11 years, 10 months ago](https://wordpress.org/support/topic/php-notice-in-error-log/)
 * I am getting a PHP notice in my error log while running WordFence Version 5.1.6
   with WP_DEBUG = TRUE:
 * PHP Notice: ob_end_flush(): failed to delete buffer zlib output compression in/
   wp-includes/functions.php on line 2935
 * This happens with or without the Falcon caching engine enabled.
 * I haven’t noticed this before, as in with previous versions of WordFence or WordPress.
 * [https://wordpress.org/plugins/wordfence/](https://wordpress.org/plugins/wordfence/)

The topic ‘PHP notice in error log.’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [NettSite](https://wordpress.org/support/users/nettsite/)
 * Last activity: [11 years, 10 months ago](https://wordpress.org/support/topic/php-notice-in-error-log/)
 * Status: not resolved