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<?php echo ("Expires: ".gmdate("D, d M Y H:i:s", time() + 3600)." GMT"); $d1=new DateTime("2012-07-08 11:14:15.638276"); $d2=new DateTime("2012-07-08 11:14:15.889342"); $diff=$d2->diff($d1); print_r( $diff ) ;

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