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My wordpress plugin uses sessions for handling various things, and on the production site I'm testing it on output buffering is not on by default so I'm getting a lot of messages such as these:

Warning: session_start() [function.session-start]: 
Cannot send session cookie - 
headers already sent by 
(output started at /blah/wp-content/themes/Starkers/header.php:12) 
in /blah/wp-content/plugins/rsq/store.php on line 4

Is there a hook or something I can latch on to in order to turn on output buffering? Am I going about this in entirely the wrong way?

Thanks, John.

  • 2
    yes you are. Try to find out the actual problem and why the plugin sets cookies after headers have been sent – onetrickpony Apr 25 '12 at 11:39
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Although I realise this is probably not the right way to go about it, I managed to turn on output buffering using the following code in my plugin:

add_action('init', 'rsq_buffering');
function rsq_buffering()
{
    ob_start();
}

I probably should be doing any session stuff from within the init hook instead of just all over the place.

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