Validity of note#33484 ?

**R. Rajesh Jeba Anbiah** · Jul 17 '05, 07:48 AM

http://www.php.net/ob_end_clean#33484

Clean (erase) the contents of the active output buffer and turn it off

Is the note is valid? I have tested in many way, but the result
somehow shows that "If-Modified-Since" header is processed by the
server than as told in the note. Anyone knows more about that? TIA

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