Question

如何从数据库中的一行中提取单个值并将其放入HTML标记中，我的代码看起来像这样，

<?php 
$projectName    = strval($_GET['project']); 
$thicknessValue = intval($_GET['thicknessValue']);
$baseplateValue = strval($_GET['baseplateValue']);

$query = "SELECT QTY_REQUIRED FROM COMPONENT_CUTTING 
                WHERE THICKNESS = :thicknessVal 
                AND PROJECT_NAME = :projectName
                AND BASE_PLATE = :baseplateVal
                AND REQUEST_STATUS = 'OPEN'";
$result = oci_parse($conn, $query);

oci_bind_by_name($result, ":projectName", $projectName);
oci_bind_by_name($result, ":thicknessVal", $thicknessValue);
oci_bind_by_name($result, ":baseplateVal", $baseplateValue);

oci_execute($result);
?>

<?php 
    while($row = oci_fetch_num($result, OCI_NUM)) { ?>
        <input type="number" name="quantityToCut" min="0" max="<?php echo $row[QTY_REQUIRED] ?>" type="text" value="">
<?php } ?>

错误显示如下，

致命错误：在第44行的C：\ xampp \ htdocs \ WeltesInformationCenter \ Component_request \ findQuantity.php中调用未定义的函数oci_fetch_num（）

Answer 1

因此。那oci_fetch_num应该是什么意思呢？正确的方法是oci_fetch_array

while($row = oci_fetch_array($result, OCI_NUM))

菲尔指出如果你使用OCI_NUM作为获取模式，那么你必须使用数字索引。你可以简单地做

while($row = oci_fetch_array($result))      // Numeric and Associative both indices

Answer 2

在while中使用oci_fetch_array，并执行<?php echo $row[0] ?>

从DB ORACLE中提取单个值

2 个答案: