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$B = new browser(); $N = $B->Name; $V = intval($B->Version); $E = true; $allowed = array( 'MSIE' => 7, 'Firefox' => 3 ); foreach($allowed as $k => $v){ if($k == $N && $V >= $v) $E = false; } if( $E ) die('УБЕЙ СЕБЯ И СВОЙ БРАУЗЕР');