Can PHP's ob_start be called more then once?
<p><strong>Can PHP's ob_start be called more then once?</strong></p>

<p>Sorry if this is a dumb question but I really don't know.</p>

<p>My site is really large (file quantity), its a social network and  one of the included files uses ob_start PHP's output buffer for something, i'm not ure someone else started my site a long time ago and now it is mine I need to look into it more to see what it's doing exactly.</p>

<p>Anyways I am wanting to use ob_start ("ob_gzhandler"); to compress CSS files and all files on my site get loaded (included) through the index file so I am wanting to know if I am able to use that even though it is already in use somewhere else in the code?</p>
