Title: ob_start() error
Last modified: August 18, 2016

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# ob_start() error

 *  [taranis](https://wordpress.org/support/users/taranis/)
 * (@taranis)
 * [21 years, 3 months ago](https://wordpress.org/support/topic/ob_start-error/)
 * This error shows up at the top of my blog when the page is first loaded:
 * Warning: ob_start(): output handler ‘ob_gzhandler’ cannot be used after ‘URL-
   Rewriter’ in /home/******/public_html/wp-includes/functions.php on line 558
 * If the page is refreshed, the problem goes away. This was happening before the
   upgrade to 1.5 and I hoped that upgrading would have fixed it, but it did not.
 * Any ideas?

Viewing 9 replies - 1 through 9 (of 9 total)

 *  Thread Starter [taranis](https://wordpress.org/support/users/taranis/)
 * (@taranis)
 * [21 years, 3 months ago](https://wordpress.org/support/topic/ob_start-error/#post-158833)
 * Still no ideas, eh?
 * Even with the line number, I can’t pin down the cause of the error. I’m not even
   sure when the ob_gzhandler is invoked.
 *  Thread Starter [taranis](https://wordpress.org/support/users/taranis/)
 * (@taranis)
 * [21 years, 2 months ago](https://wordpress.org/support/topic/ob_start-error/#post-159129)
 * Now I’m just pestering, but nothing I have tried can even change this, much less
   fix it.
 * Please help.
 *  [Ming](https://wordpress.org/support/users/ming/)
 * (@ming)
 * [21 years, 2 months ago](https://wordpress.org/support/topic/ob_start-error/#post-159130)
 * Have you installed any plugins that are using the output handler? Try disabling
   all your plugins. Do you still get the error?
 *  Thread Starter [taranis](https://wordpress.org/support/users/taranis/)
 * (@taranis)
 * [21 years, 2 months ago](https://wordpress.org/support/topic/ob_start-error/#post-159140)
 * I figured out what it was. Your comment led me right to it. In the DB, there 
   were some plugins listed as activated even though they are no longer installed
   nor used.
 * So, I edited that info to reflect the plugins that are actually there and it 
   seems to have fixed the problem.
 * Thanks Ming! I owe you one.
 *  Thread Starter [taranis](https://wordpress.org/support/users/taranis/)
 * (@taranis)
 * [21 years, 2 months ago](https://wordpress.org/support/topic/ob_start-error/#post-159142)
 * I spoke too soon. The error still exists. AARRGGHH!!
 * I was sure you had found the problem.
 *  [ColdForged](https://wordpress.org/support/users/coldforged/)
 * (@coldforged)
 * [21 years, 2 months ago](https://wordpress.org/support/topic/ob_start-error/#post-159143)
 * So if you disable every plugin you still get the error?
 *  Thread Starter [taranis](https://wordpress.org/support/users/taranis/)
 * (@taranis)
 * [21 years, 2 months ago](https://wordpress.org/support/topic/ob_start-error/#post-159145)
 * Yes, all plugins are disabled. The field in the DB where “activeplugins” are 
   kept say “a:0{}” or something similar, so it seems nothing is activated.
 *  [citizenofnowhere](https://wordpress.org/support/users/citizenofnowhere/)
 * (@citizenofnowhere)
 * [21 years, 1 month ago](https://wordpress.org/support/topic/ob_start-error/#post-159169)
 * Taranis: Check to see if you have ticked the “wordpress should compress articles(
   gzip) if browser asks for them” option in your “Reading Options” tab. I had the
   same problem and when i turned the option off it went away. I think the reason
   the error disappeared for a while when you de-activated the plug-in is because
   the page was re-loaded – I’m not too sure why that happens but oh well.
 * Hope that helps.
 *  [camelo](https://wordpress.org/support/users/camelo/)
 * (@camelo)
 * [21 years, 1 month ago](https://wordpress.org/support/topic/ob_start-error/#post-159176)
 * Hi guys, I found an answer for this question. Fixing it is very very easy.
    Take
   a look… [http://weblogtoolscollection.com/archives/2004/07/31/gzip-compression-issue-in-wordpress-12-mingus/](http://weblogtoolscollection.com/archives/2004/07/31/gzip-compression-issue-in-wordpress-12-mingus/)

Viewing 9 replies - 1 through 9 (of 9 total)

The topic ‘ob_start() error’ is closed to new replies.

## Tags

 * [gzip](https://wordpress.org/support/topic-tag/gzip/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 9 replies
 * 5 participants
 * Last reply from: [camelo](https://wordpress.org/support/users/camelo/)
 * Last activity: [21 years, 1 month ago](https://wordpress.org/support/topic/ob_start-error/#post-159176)
 * Status: not resolved

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