Article:		The Road to XHTML 2.0: MIME Types
Subject:		Validating PHP
Date:		2004-01-24 13:22:45
From:		Richard Allsebrook
As the W3C validator doesnt send a HTTP_ACCEPT header, you must modify the PHP sample above to read: if ( isset($_SERVER["HTTP_ACCEPT"]) and stristr($_SERVER["HTTP_ACCEPT"],"application/xhtml+xml") ) { header("Content-type: application/xhtml+xml"); } else { header("Content-type: text/html"); } Otherwise an error message is squirted out before the header. This causes further problems as headers MUST be sent before any content.

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• Validating PHP
  2007-11-20 03:11:34 asilonline
  
  very good
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