php sqlsrv 如何顯示出欄位名稱

http://phorum.study-area.org/index.php?topic=67395.0

while( $row = sqlsrv_fetch_array( $result, SQLSRV_FETCH_ASSOC ) ) { 
if (++$i == 1) { // 第一筆資料顯示欄位名稱 
echo " "; 
foreach (array_keys($row) as $val) { 
echo "".$val.""; 
} 
echo "
". "\n" ; 
} 

echo " "; 
foreach ($row as $val) { 
echo "".$val.""; 
} 
echo "". "\n" ; 
}