在php环境中，从oracle中获取数据如何提取具体值？

这样显示的数据正常，是按行显示。
$nrows = oci_fetch_all($stmt, $results);
echo "\n";
for ($i = 0; $i < $nrows; $i++) {
echo "\n";
foreach ($results as $data) {
echo "\n";
}
echo "\n";
}
echo "

$data[$i]

\n";

输入到html的模版
{loop $results $data}

{$data[1]}
{$data[2]}
{$data[3]}
{$data[4]}
{$data[5]}

{/loop}
就变成按列显示了，原因在哪里？data[1]中的每个变量如何提取？

连接 　　以上代码使用TNSNAME（在你的tnsnames.ora文件中指明）定义的Oracle数据库名称、用户名称和密码连接数据库。在成功连接的基础上，ora_logon函数返回一个非零的连接ID并储存在变量$conn中。 　　查询 　　假设与数据库已经连接就绪，下面我们就来实际的应用对数据库的查询。下面的代码演示了一个连接并查询的典型例子： function printoraerr($in_cur) { // 检查Oracle是否出错 // 如果存在错误则显示 // 当指针被激活时每次请求Oracle后调用该函数 if(ora_errorcode($in_cur)) echo "Oracle code - ".ora_error($in_cur)."\n"; return; } if (!($conn=ora_logon("user@TNSNAME","password"))) {echo "Connection to database failed\n"; exit; } echo "Connected as connection - $conn \n"; echo "Opening cursor ... \n"; $cursor=ora_open($conn); printoraerr($cursor); echo "Opened cursor - $cursor \n"; $qry="select user,sysdate from dual"; echo "Parsing the query $qry ... \n"; ora_parse($cursor,$qry,0); printoraerr($cursor); echo "Query parsed \n"; echo "Executing cursor ... \n"; ora_exec($cursor); printoraerr($cursor); echo "Executed cursor \n"; echo "Fetching cursor ... \n"; while(ora_fetch($cursor)) { $user=ora_getcolumn($cursor,0); printoraerr($cursor); $sysdate=ora_getcolumn($cursor,1); printoraerr($cursor); echo " row = $user, $sysdate \n"; } echo "Fetched all records \n"; echo "Closing cursor ... \n"; ora_close($cursor); echo "Closed cursor \n"; echo "Logging off from oracle... \n"; ora_logoff($conn); echo "Logged off from oracle \n"; ?>　　显示结果　　以下代码演示了怎样查询数据库并将结果输出： function printoraerr($in_cur, $conn) { // 检查Oracle是否出错 // 如果存在错误则显示 // 当指针被激活时每次请求Oracle后调用该函数 // If it encountered an error, we exit immediately if(ora_errorcode($in_cur)) {echo "Oracle code - ".ora_error($in_cur)." n"; ora_logoff($conn); exit; } return; } function exequery($w_qry,$conn) { $cursor=ora_open($conn); printoraerr($cursor,$conn); ora_parse($cursor,$w_qry,0); printoraerr($cursor,$conn); ora_exec($cursor); printoraerr($cursor,$conn); $numrows=0; $w_numcols=ora_numcols($cursor); // 显示头部 echo " \n"; for ($i=0;$i<$w_numcols;$i++) { $align=(ora_columntype($cursor,$i)=="NUMBER")?"RIGHT":"LEFT"; echo "\t ".ora_columnname($cursor,$i)." \n"; } echo " \n"; while(ora_fetch($cursor)) { echo " \n"; for ($i=0;$i<$w_numcols;$i++) { $align=(ora_columntype($cursor,$i)=="NUMBER")?"RIGHT":"LEFT"; if(ora_columntype($cursor,$i)=="LONG") echo " ". ora_getcolumn($cursor,$i)." \n"; else echo " ".ora_getcolumn($cursor,$i)." \n"; printoraerr($cursor,$conn); } $numrows++; echo " \n"; } if ($numrows==0) echo " Query returned no records \n"; else { echo " \n"; echo " Count \n"; echo " $numrows \n"; echo " \n"; } echo " \n"; ora_close($cursor); return; } // 主程序 if(!($conn=ora_logon("user@SID","password"))) { echo "Error: Cannot connect to database\n"; exit; } $qry="SELECt deptno \"Dept\" ,empno \"Emp\" ,empnm \"Name\" ,salary \"Salary\" FROM employee ORDER BY 1,2"; exequery($qry); ora_logoff($conn); ?>　　基于HTTP的Oracle登录　　将以下代码加在PHP页面代码之前以确认Oracle登录。注意你必须正确设定$ SID。 if(!isset($PHP_AUTH_USER)) { Header("WWW-authenticate: basic realm=\"$SID\""); Header("HTTP/1.0 401 Unauthorized"); $title="Login Instructions"; echo " You are not authorized to enter the site \n"; exit; } else { if (!($conn=ora_logon("$PHP_AUTH_USER@$SID",$PHP_AUTH_PW))) {Header("WWW-authenticate: basic realm=\"$SID\""); Header("HTTP/1.0 401 Unauthorized"); $title="Login Instructions"; echo " You are not authorised to enter the site \n"; exit; }} ?>

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