Question

我有一个大表，可以根据数据库中的信息动态生成输入字段。提交后，表单数据通过ajax发送到另一个php文件。我需要检索特定输入字段的域ID以运行其他查询。如果我回显从查询中检索到的id，并且id是例如“2”和“3”，则返回“2”，“2”。发生页面刷新时，输入字段将彼此重复。

这些都是假值，因此可以安全地显示我正在使用的内容。 SOA字段是静态的，但每个后续字段都是动态创建的。

如果没有更改输入值，我点击更新，刷新页面，就会发生这种情况：

在“网络”选项卡（XHR响应）上，这是在页面刷新/复制发生之前发回的数据。

"10""@""10""localhost""Success"

除了“成功”之外的一切都会在以后消失。我只是回复它们进行调试。如您所见，查询显示重复的域，当它们实际上应该是“10”和“11”时。

我将从表格页面开始，以显示如何动态生成字段。为简洁起见，我只会显示一个区块（有5个区块）。

<?php
$a_count = $db->count("SELECT * FROM records WHERE domain_id=? AND type=?", [$domain_id, $type['A']]);
if ($a_count > 0) : ?>
<!-- ALL OF THE LABELS ABOVE THE INPUTS -->
     <div class="row">
         <div class="col-sm-2 " style="font-weight:bold;">
             Host
         </div>
         <div class="col-sm-2" style="font-weight:bold;margin-left:30px;">
             IP
         </div>
         <div class="col-sm-2" style="font-weight:bold;margin-left:30px;">
             TTL
         </div>
         <div class="col-sm-2" style="font-weight:bold;margin-left:30px;">
            Timestamp
         </div>
         <div class="col-sm-2" style="height:20px;width:210px;"></div>
         <div class="col-sm-2" style="font-weight:bold;width:100px;margin-left:160px;">
            Delete
         </div>
     </div>
     <!-- GET THE RECORDS TO DISPLAY IN ONE ROW OF INPUTS -->
     <?php
     foreach ($records = $db->getRows("SELECT * FROM records WHERE domain_id=? AND type=?", [$domain_id, $type['A']]) as $record) {
         $rid_a = $record['id']; ?>

         <div class="row">
             <div class="col-sm-2">
                 <input type="text" class="form-control" name="A_host[]"
                                       value="<?php echo escape($record['name']); ?>">
            </div>
            <div class="col-sm-2" style="margin-left:30px;">
                                <input type="text" class="form-control" name="A_ip[]"
                                       value="<?php echo escape($record['content']); ?>">
            </div>
            <div class="col-sm-2" style="margin-left:30px;">
                                <input type="text" class="form-control" name="A_ttl[]"
                                       value="<?php echo escape($record['ttl']); ?>">
            </div>
            <div class="col-sm-2" style="margin-left:30px;">
                                <input type="text" class="form-control" name="A_timestamp[]"
                                       value="<?php echo escape($record['change_date']); ?>">
            </div>
            <div class="col-sm-2" style="height:20px;width:100px;"></div>
            <div class="col-sm-2" style="margin-left:80px;">
                                <input type="checkbox" style="margin-top:15px;margin-left:195px;" name="A_delete_checkbox" value="<?php echo escape($rid_a);?>">
            </div>
          </div>
          <?php }
       else:?>
       <!-- OTHERWISE, SHOW THERE ARE NO RECORDS -->
           <div class="row">
                NO A RECORDS AVAILABLE
           </div>
      <?php endif; ?>

以下是我提交表单的jQuery部分：

$('#edit_zone_form').submit(function (e) {
        e.preventDefault();
        var isEmpty = false;
        $(':input:not(:button):not(:checkbox)').each(function () { //First, check if any inputs are empty. If empty, show dialog.
            if ($(this).val() === "") {
                var error_text = $('#dialog p').text("All fields are required");
                $('#dialog').html(error_text);
                $('#dialog').dialog('option', 'title', 'Error').dialog('open');
                isEmpty = true;
                console.log("Submitted form. isEmpty = " + isEmpty);
                return false;
            }
        });
        if(!isEmpty) {
            console.log("Passed if(!isEmpty) " + isEmpty);
            var error_text = $('#dialog_confirm p').text("Please confirm your update\nbefore proceeding."); //Confirm they want to do that
            error_text.html(error_text.html().replace(/\n/g, '<br/>'));
            $('#dialog_confirm').dialog('open');
        }
        $('#confirm_button').click(function () { //Confirm button becomes a 'submit' button for ajax
            $.ajax({
                url: 'domain-edit-check.php?id=' + <?php echo json_encode($domain_id);?>, //domain_id used in destination file
                type: 'post',
                dataType: 'json',
                data: $('#edit_zone_form').serialize(),
                success: function (response) {
                    if(response === "Success") {
                        var success_text = $('#dialog p').text("Domain Successfully Updated.");
                        $('#dialog').html(success_text);
                        $('#dialog').dialog('option', 'title', 'Success').dialog('open');
                        $('#dialog').on('dialogclose', function() {
                            setTimeout(function() {
                                location.replace('domain-edit2.php?init=1&edit_domain=' + <?php echo json_encode($edit_domain);?>);
                            }, 500)
                        });
                    }
                   //THE REST OF THE CONDITIONS (error, etc)
            });
        });
    });

最后，执行处理的php（注意 - $ db-＆gt; getRow是一个自定义函数，并且在整个应用程序中都有效，直到这个）：

//domain-edit-check.php

if ($_SERVER['REQUEST_METHOD'] == 'POST') {

    $CLIENT_IP = $_SERVER['REMOTE_ADDR'];
    $DATE_TIME = date('Y-m-d H:i:s');
    $domain_id = $_GET['id']; //domain_id passed from ajax url string

    //There are no duplicates of these. They are static inputs
    $SOA_content_field = array($_POST['SOA_NS'], $_POST['SOA_Contact'], $_POST['SOA_Serial'], $_POST['SOA_Refresh'], $_POST['SOA_Retry'], $_POST['SOA_Expire']);
    $SOA_content_param = implode(" ", $SOA_content_field);
    $SOA_update = $db->updateRow("UPDATE records SET content=?, ttl=?, change_date=? WHERE domain_id=? AND type=?", [$SOA_content_param, $fields['SOA_TTL'], $DATE_TIME, $domain_id, 'SOA']))

    //After the top inputs, check all of the dynamic inputs with the update_ok function.
    //Send back results based on the outcome.
    if (update_ok($domain_id) === true) {
        echo json_encode("Success");
        $db->disconnect();

    } else {
        echo json_encode("Failure");
        $db->disconnect();
    }
}

function update_ok($domain_id)
{
    $passed = false;
    $db = new DB();

    //The different types of records for queries
    $types = array(
        'A' => 'A',
        'NS' => 'NS',
        'MX' => 'MX',
        'CNAME' => 'CNAME',
        'TXT' => 'TXT'
    );
    //CHECK ALL OF THE DYNAMIC INPUTS FROM THE FORM
    //THIS IS WHERE THE PROBLEM BEGINS
    foreach ($_POST['A_host'] as $key => $value) {

        //GET THE ID FOR ALL OF THE INPUTS AND MAKE UPDATES BASED ON THAT UNIQUE ID

        if($result = $db->getRow("SELECT id FROM records WHERE domain_id=? AND type=?", [$domain_id, $types['A']])) {
            $id = $result['id'];
            //echo json_encode($id);
            //echo json_encode($value);
            if ($update = $db->updateRow("UPDATE records SET name=? WHERE id=?", [$value, $A_host_result['id']])) {
            $passed = true;
            }
        }
    }
    //DO THE SAME FOR THE REST OF THE INPUTS (Minimum of 15 more. Some have 2-5 of each)
    foreach ($_POST['A_ip'] as $key => $value) {

    }
    foreach(etc etc as $etc => $etc) {
        //etc etc etc...
    }

如果我循环遍历$ _POST数组，为什么我的id会重复？如果id没有重复，我的问题就会解决。我已经尝试将此函数作为测试页面上的独立代码块并且它正确地返回信息。我的foreach（$ _ POST）有点不对劲，我只是不知道是什么。

Answer 1

您没有在输入中使用记录ID。

在HTML中：

<input type="text" class="form-control" name="A_host[<?php echo $rid_a?>]" 
       value="<?php echo escape($record['name']); ?>">

在PHP中：

foreach ($_POST['A_host'] as $id => $value) {
    if ($update = $db->updateRow("UPDATE records SET name=? WHERE id=?", [$value, $id])) {
        $passed = true;
    }
}

等等其余的输入。

$ _POST输入数组上的foreach返回重复的字段

1 个答案: