Question

我正在尝试做一个将值插入数据库的表单，但是我总是收到ID_team，名称和img的错误消息：

Notice: Undefined variable: id_team in *** on line 12

所以说错误来自这一行：

$query1 = "INSERT INTO player (id, id_team, name, img) VALUES(NULL, $id_team, $name, $img)";

但是我的插入查询中没有看到任何错误。

这是我的php：

include('../../../connexion.php');
$connexion=connexionBd();

if(isset($_POST['id_team']) && isset($_POST['name'])&& isset($_POST['img'])&& !empty($_POST['id_team'])&& !empty($_POST['name'])&& !empty($_POST['img'])){
    $id_team=$_POST['id_team'];
    $name=$_POST['name'];
    $img=$_POST['img'];
}

$query1 = "INSERT INTO player (id, id_team, name, img) VALUES(NULL, $id_team, $name, $img)";

$query3 = "SELECT * FROM team";
$resultat3=$connexion->query($query3);
$res3=$resultat3->fetchALL(PDO::FETCH_ASSOC);

这是我的表格：

       <form method="post" action="add.php">
        <fieldset>
            <legend>Add a player</legend>

            <p>
                <label>Team</label>
                <select name="id_team">
                <?php foreach($res3 as $key => $value): ?> 
                    <option value="<?=$value['id']?>"><?=$value['name']?></option>
                <?php endforeach; ?>

                </select>
            </p> 

            <p>
                <label>name</label>
                <input type="text" name="name" />
            </p>

            <p>
                <label>Image</label>
                <input type="file" name="img" style="width:200px; font-size:10px;" />
            </p>

            <p>
                <input type="submit" name="send" value="Envoyer" />
            </p>

        </fieldset>
    </form>

Answer 1

尝试这个：

$query1 = "INSERT INTO player (`id`, `id_team`, `name`, `img`) VALUES(NULL, '$id_team', '$name', '$img')";

Answer 2

我收到此错误，是因为我忘记将查询放入if循环中，因此无法识别值。

if(isset($_POST['id_team']) && isset($_POST['name'])&& isset($_POST['img'])&& !empty($_POST['id_team'])&& !empty($_POST['name'])&& !empty($_POST['img'])){
    $id_team=$_POST['id_team'];
    $name=$_POST['name'];
    $img=$_POST['img'];

    $query1 = "INSERT INTO player (`id`, `id_team`, `name`, `img`) VALUES(NULL, '$id_team', '$name', '$img')";

}

尝试使用表单插入数据但出现未定义变量错误

2 个答案: