Question

我写了一个脚本而且它没有提取数据，我看不出它有什么问题。

我的脚本是：

<?php 
    $conn = mysqli_connect("*****", "*****", "*****", "*****");

    $sql = "SELECT * FROM points ORDER BY points DESC LIMIT 3;";
    $result = mysqli_query($conn, $sql);
    $resultCheck = mysqli_num_rows($result);

    if ($resultCheck > 0) {
        while ($row = mysqli_fetch_assoc($result)) {
            echo $row['players'] . "<br>"; 
        }
    }
?>

Answer 1

从数据库中获取数据的代码工作正常，您应该检查数据库名称或表名称或表的字段名称。并且可能发生在您的表中不存在您尝试获取的表的字段名称。

<?php 

$conn = mysqli_connect('localhost','root','','stackoverflow');

$sql = "SELECT * FROM task ORDER BY task_id DESC LIMIT 3 ;";
$result = mysqli_query($conn, $sql);
$resultCheck = mysqli_num_rows($result);

if ($resultCheck > 0) 
{
    while ($row = mysqli_fetch_assoc($result)) {
        echo $row['license'] . "<br>"; 
    }
}

?>

PHP - 不提取数据

1 个答案: