Title: [Plugin: W3 Total Cache] Error at define.php
Last modified: August 20, 2016

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# [Plugin: W3 Total Cache] Error at define.php

 *  [tem_sat](https://wordpress.org/support/users/tem_sat/)
 * (@tem_sat)
 * [14 years ago](https://wordpress.org/support/topic/plugin-w3-total-cache-error-at-definephp/)
 * I think your plug-in is excellent, however, I am experiencing the following php
   error:
 * [31-May-2012 21:56:54] PHP Warning: preg_replace() [[function.preg-replace](https://wordpress.org/support/topic/plugin-w3-total-cache-error-at-definephp/function.preg-replace?output_format=md)]:
   Unknown modifier ‘b’ in /home2/…/wp-content/plugins/w3-total-cache/inc/define.
   php on line 959
 * Do you have any suggestions as to how to fix this?
 * Thank you in advance for any assistance.
 * — Tara
 * [http://wordpress.org/extend/plugins/w3-total-cache/](http://wordpress.org/extend/plugins/w3-total-cache/)

The topic ‘[Plugin: W3 Total Cache] Error at define.php’ is closed to new replies.

 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
 * [W3 Total Cache](https://wordpress.org/plugins/w3-total-cache/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/w3-total-cache/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/w3-total-cache/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/w3-total-cache/unresolved/)
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 * 0 replies
 * 1 participant
 * Last reply from: [tem_sat](https://wordpress.org/support/users/tem_sat/)
 * Last activity: [14 years ago](https://wordpress.org/support/topic/plugin-w3-total-cache-error-at-definephp/)
 * Status: not resolved