输入类型=提交不返回任何东西

Question

团队，你能帮我解决这个问题吗？我正在尝试从表单中获取值以更改 mysql 上的这些值。这是一个需要值的销售操作，这将被放入数据库中。我有一个复选框，允许用户 select 根据这个 selection 他想要出售哪些对象我正在创建一个新的 table 波纹管对象 select ed 和 POST 值的方法。然而，这并没有完全满足我的需要，我不知道如何将每个值与正确的对象相关联。你能帮忙吗？这是我坚持的部分，更具体地说是在第二个 isset 上：

if(isset($_POST['publicar'])){//to run PHP script on submit
                if(!empty($_POST['check_list'])){

                    echo "<tr><td>Sites a Publicar</td><td>Valor</td></tr>";
                    foreach($_POST['check_list'] as $selected){
                        echo"<tr><td>".$selected."</td><td><input type=number name=valor_site[]></td></tr>";
                        $_SESSION['lista_public[]']=$selected;

                    }

                    echo"<tr><td><input type='submit' name='submit_valor' value='Submit' /></td></tr>";
                }
            }
if(isset($_POST['submit_valor'])){
                if(!empty($_POST['valor_site'])){
                    foreach($_POST['valor_site'] as $valor_site){
                        echo $selected." tem valor ".$valor_site;
                    } 
                }
            }

Answer 1

问题出在这一行：

$_SESSION['lista_public[]']=$selected;

这每次都会覆盖存储在$_SESSION['lista_public[]']中的值。我的建议是：

$_SESSION['lista_public'] = array();
if(isset($_POST['publicar'])){//to run PHP script on submit
    if(!empty($_POST['check_list'])){
        echo "<tr><td>Sites a Publicar</td><td>Valor</td></tr>";
        foreach($_POST['check_list'] as $selected){
            echo"<tr><td>".$selected."</td><td><input type=number name=valor_site[]></td></tr>";
            $_SESSION['lista_public'][] = $selected;
        }

        echo"<tr><td><input type='submit' name='submit_valor' value='Submit' /></td></tr>";
    }
}

if(isset($_POST['submit_valor'])){
    if(!empty($_POST['valor_site'])){
        $i = 0;
        foreach($_POST['valor_site'] as $valor_site){
            echo $_SESSION['lista_public'][$i++]." tem valor ".$valor_site;
        } 
    }
}

Answer 2

使用数组

    $temp = array()
    if(isset($_POST['publicar'])){//to run PHP script on submit
            if(!empty($_POST['check_list'])){
                echo "<tr><td>Sites a Publicar</td><td>Valor</td></tr>";
                foreach($_POST['check_list'] as $selected){
                    echo"<tr><td>".$selected."</td><td><input type=number name=valor_site[]></td></tr>";
                    $temp[]=$selected;

                }
                $_SESSION['lista_public'] = $temp;
                echo"<tr><td><input type='submit' name='submit_valor' value='Submit' /></td></tr>";
            }
        }
    if(isset($_POST['submit_valor'])){
    if(!empty($_POST['valor_site'])){
    $i = 0;
    $temp = $_SESSION['lista_public'];
    foreach($_POST['valor_site'] as $valor_site){
        echo $temp[$i++]." tem valor ".$valor_site;
    } 
}

输入类型=提交不返回任何东西

input type=submit not returning anything

php

post

submit

form-submit