Title: PHP Warning
Last modified: September 1, 2016

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# PHP Warning

 *  [hxxrmonkey](https://wordpress.org/support/users/hxxrmonkey/)
 * (@hxxrmonkey)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/php-warning-89/)
 * Have repeated entries of PHP Warning: Cannot modify header information – headers
   already sent by (output started at /home/…/public_html/wp-content/plugins/affiliates-
   manager/imp.php:21) in /home/…/public_html/wp-content/plugins/affiliates-manager/
   source/Tracking/RequestTracker.php on line 215, referer: [http://&#8230](http://&#8230);.
 * Seems to pop up for every referral.
 * [https://wordpress.org/plugins/affiliates-manager/](https://wordpress.org/plugins/affiliates-manager/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [mbrsolution](https://wordpress.org/support/users/mbrsolution/)
 * (@mbrsolution)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/php-warning-89/#post-7608648)
 * Thank you for reporting this. The plugin developers will investigate further.
   Also can you make sure you have the latest plugin version installed.
 * Thank you
 *  Plugin Author [affmngr](https://wordpress.org/support/users/affmngr/)
 * (@affmngr)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/php-warning-89/#post-7608696)
 * [@hxxrmonkey](https://wordpress.org/support/users/hxxrmonkey/), Do you have an
   affilaite link that I can use to test it?
 *  Thread Starter [hxxrmonkey](https://wordpress.org/support/users/hxxrmonkey/)
 * (@hxxrmonkey)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/php-warning-89/#post-7608699)
 * It’s on a live site, the warnings don’t display, but they are in the logs basically
   any time there’s a referral.

Viewing 3 replies - 1 through 3 (of 3 total)

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

 * ![](https://ps.w.org/affiliates-manager/assets/icon-128x128.png?rev=981249)
 * [Affiliates Manager](https://wordpress.org/plugins/affiliates-manager/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/affiliates-manager/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/affiliates-manager/)
 * [Active Topics](https://wordpress.org/support/plugin/affiliates-manager/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/affiliates-manager/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/affiliates-manager/reviews/)

## Tags

 * [headers already sent](https://wordpress.org/support/topic-tag/headers-already-sent/)
 * [PHP Warning](https://wordpress.org/support/topic-tag/php-warning/)

 * 4 replies
 * 3 participants
 * Last reply from: [affmngr](https://wordpress.org/support/users/affmngr/)
 * Last activity: [9 years, 8 months ago](https://wordpress.org/support/topic/php-warning-89/#post-7608724)
 * Status: not resolved