使用php或javascript通过按钮onclick

Question

使用foreach我显示带有两个按钮的条目 - 分别更新和删除，如何使用onclick（php或javascript）使这些按钮响应？ 请点击此处查看附件 。 谢谢。

注意：未标记的按钮位于条目旁边 - 最右边这是代码：

$get_product_details = $db->query("SELECT product_name,product_type FROM products WHERE product_code = '$product_code'");
foreach($get_product_details as $key) {
    echo'<tr><td>'.$key['product_name'].'</td><td>'.$key['product_type'].'</td><td><input type =  "text" name = "actual_case" value = "'.$quantity.'"class = "form-control" style = "width:20%;"></td>
    <td><a href="?update='.$product_code.'"<input type = "button" name = "update" class =  "form-control" value ="update" style = "width:20%;height:0"></a></td>
    <td><a href="?remove='.$product_code.'"<input type = "button" name = "remove" id = "" class =  "form-control" value ="remove" style = "width:20%;height:0"></a></td></td></tr></br>';
}
if(isset($_GET['remove'])){
    $delete_entry = $db->query("DELETE * FROM order_supplier_list WHERE order_supplier_id = '$transaction_id' AND product_code = '".$_GET['remove']."'");   
}
if(isset($_GET['update'])){
    $qntity = $_POST['actual_case'];
    $update_order = $db->query("UPDATE order_supplier_list SET quantity = '$qntity' WHERE order_supplier_id = '$transaction_id' AND product_code = '".$_GET['update']."'");
}

Answer 1

我创建了一个隐藏字段来保存$ product_code变量的值并带走了锚标签，因为我在ajax中处理了这个问题。 然后我在jquery中获取此值，在ajax部分中使用它构建url。

foreach($get_product_details as $key) {
  echo'<tr><td>'.$key['product_name'].'</td>  <td>'.$key['product_type'].'</td><td><input type =  "text" name = "actual_case" value = "'.$quantity.'"class = "form-control" id="quantity" style = "width:20%;"></td>
  <td><input type = "hidden" name = "product_code" class =  "form-control" value ="'.$product_code.'" style = "width:20%;height:50"></td>
 <td><input type = "button" name = "update" class =  "form-control" value ="update" style = "width:20%;height:50" onclick="updateProduct()"> </td>
    <td><input type = "button" name = "remove" id = "" class =  "form-control" value ="remove" style = "width:20%;height:50" onclick="deleteProduct()></td></td></tr></br>';}

这部分是带有ajax部分的jquery

$(function(){


function updateProduct(){
    var hiddenProduct_Code=$('#hiddenProduct_code').val();
    var quantity=$('#quantity').val();
    $.ajax({
            method: 'GET',
            url: "?update="+hiddenProduct_Code+"",
            data: {'update' : hiddenProduct_Code,'actual_case':quantity},
            success: function (data) {
            if (data) {
               alert(data);
            }
        },
    });
}

function deleteProduct(){
    var hiddenProduct_Code=$('#hiddenProduct_code').val();
    $.ajax({
            method: 'GET',
            url: "?remove="+hiddenProduct_Code+"",
            data: {'remove' : hiddenProduct_Code},
            success: function (data) {
            if (data) {
               alert(data);
            }
        },
    });
}
});

您可以执行所需的任务移动到您检查是否已触发更新或删除操作的页面

    <?php 


if(isset($_GET['remove'])){
    $delete_entry = $db->query("DELETE  FROM order_supplier_list WHERE order_supplier_id = '$transaction_id' AND product_code = '".$_GET['remove']."'");   
}
if(isset($_GET['update'])){
    $qntity = $_GET['actual_case']; //I change it from $_POST to ensure uniformity
    $update_order = $db->query("UPDATE order_supplier_list SET quantity = '$qntity' WHERE order_supplier_id = '$transaction_id' AND product_code = '".$_GET['update']."'");
}

 ?> 

希望这有助于DELETE语法是固定的，你可以找到更多dev.mysql.com/doc/refman/5.7/en/delete.html感谢@Fred