Php无法获取外键对象id

Php can't get foreign key object id

本文关键字：对象 id 获取 Php | 更新日期: 2023-09-27

我试图获得外键对象id，但它不工作。

$sql2 = "SELECT a.*, q.* FROM answer a inner join question q on a.question_id = q.id WHERE a.question_id = 1";
$result2 = $conn ->query($sql2);
while($row2 = $result2->fetch_assoc()) {
    echo "<input name='group1' type='radio' id='". $row2['id'] ."' />" . "<label for='". $row2['id'] ."'>".$row2['answer_text']."</label>";
}

$result2 = $conn ->query($sql2);

$result2 = $conn->query($sql2);