使用 mysql 和 php 维护表单状态的问题

Question

我有一个页面应该显示一个带有复选框的表单，如果它被选中则回发，将结果存储在数据库中，然后在下次加载页面时将复选框显示为选中，并将其更新为未选中根据需要。

我知道我的解决方案有浮动“选中”并不理想，但它工作正常，我想坚持下去。

我遇到的问题是，虽然一条记录可能已正确插入到数据库中，但它在重新加载页面时既未显示为已检查，也未正确更新记录。

这是我的代码：

<?php
error_reporting(E_ALL);
if (isset($_GET["cmd"]))
  $cmd = $_GET["cmd"]; else
if (isset($_POST["cmd"]))
  $cmd = $_POST["cmd"]; else
die("Invalid URL");
if (isset($_GET["pk"])) {
    $pk = $_GET["pk"];
}
$checkDeleted = "";
$checkNotice = "";
$checkWarrant = "";
$checkPromise = "";
$checkCompensation = "";
$checkBond = "";
$checkInjunction = "";
$checkActionpay = "";
$checkActionorder = "";
$checkCourtpayment = "";
$checkForeclosure = "";
$checkPenalty = "";
$checkboxes = $_POST['checkboxes'];
if (in_array('deleted', $checkboxes))
  $checkDeleted = 'checked';
$con = mysqli_connect("localhost","user","pass", "db");
if (!$con) {
    echo "Can't connect to MySQL Server. Errorcode: %s\n". mysqli_connect_error();
    exit;
}
$con->set_charset("utf8");
$getformdata = $con->query("select ARTICLE_NO, deleted from STATUS where ARTICLE_NO = '$pk'");
while ($row = mysqli_fetch_assoc($getformdata)) {
    $ARTICLE_NO = $row['ARTICLE_NO'];
    $checkDeleted = $row['deleted'];
}
if($cmd=="submitinfo") {
    if ($ARTICLE_NO == null) {
        $statusQuery = "INSERT INTO STATUS VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
        if ($statusInfo = $con->prepare($statusQuery)) {
            $statusInfo->bind_param("sssssssssssss", $pk, $checkDeleted, $checkNotice, $checkWarrant, $checkPromise, $checkCompensation, $checkBond, $checkInjunction, $checkActionpay, $checkActionorder, $checkCourtpayment, $checkForeclosure, $checkPenalty);
            $statusInfo->execute();
            $statusInfo->close();
            echo $pk;
            echo $checkDeleted;
        } else {
            print_r($con->error);
        }
    } else if ($ARTICLE_NO == $pk) {
        $statusQuery = "UPDATE STATUS SET deleted = ?, notice = ?, warrant = ?, promise = ?, compensation = ?, bond = ?, injunction = ?, actionpay = ?, actionorder = ?, courtpayment = ?, foreclosure = ?,penalty = ? WHERE ARTICLE_NO = ?";
        if ($statusInfo = $con->prepare($statusQuery)) {
            $statusInfo->bind_param("sssssssssssss", $checkDeleted, $checkNotice, $checkWarrant, $checkPromise, $checkCompensation, $checkBond, $checkInjunction, $checkActionpay, $checkActionorder, $checkCourtpayment, $checkForeclosure, $checkPenalty, $pk);
            $statusInfo->execute();
            $statusInfo->close();
        } else {
            print_r($con->error);
        }
    }
}
if($cmd=="EditStatusData") {
    echo '<link rel="stylesheet" href="style.css" type="text/css" />' . "\n";
    echo "<form name=\"statusForm\" action=\"test.php?pk=".$pk."\" method=\"post\" enctype=\"multipart/form-data\">
<h1>Editing information for Auction No: ".$pk."</h1>
<input type=\"checkbox\" name=\"checkboxes[]\" value=\"deleted\" ".$checkDeleted." />
<label for=\"deleted\">Löschung Ebay</label>
<br />
<input type=\"hidden\" name=\"cmd\" value=\"submitinfo\" />
<input name=\"Submit\" type=\"submit\" value=\"submit\" />
</form>";
}

我已经尽可能地减少了这个，但不确定原因在哪里。

Answer 1

如果我理解你的问题是正确的替换

$checkboxes = $_POST['checkboxes'];

与

$checkboxes = (isset($_POST['checkboxes'])? $_POST['checkboxes'] : array());

我想会解决你的问题。 （我没有运行脚本进行测试，但希望没有错误）

完整示例：

<?php
error_reporting(E_ALL);

if (isset($_GET["cmd"]))
  $cmd = $_GET["cmd"]; 
    else
if (isset($_POST["cmd"]))
  $cmd = $_POST["cmd"]; 
        else die("Invalid URL");

if (isset($_GET["pk"])) { $pk = $_GET["pk"]; }

$checkDeleted = "";
$checkNotice = "";
$checkWarrant = "";
$checkPromise = "";
$checkCompensation = "";
$checkBond = "";
$checkInjunction = "";
$checkActionpay = "";
$checkActionorder = "";
$checkCourtpayment = "";
$checkForeclosure = "";
$checkPenalty = "";

$checkboxes = (isset($_POST['checkboxes'])? $_POST['checkboxes'] : array());

if (in_array('deleted', $checkboxes)) $checkDeleted = 'checked';

$con = mysqli_connect("localhost","user","pass", "db");
if (!$con) { echo "Can't connect to MySQL Server. Errorcode: %s\n". mysqli_connect_error(); exit; }

$con->set_charset("utf8");

$getformdata = $con->query("select ARTICLE_NO, deleted from STATUS where ARTICLE_NO = '$pk'");

while ($row = mysqli_fetch_assoc($getformdata)) {
    $ARTICLE_NO = $row['ARTICLE_NO'];
    $checkDeleted = $row['deleted'];
}

if($cmd=="submitinfo") {
    if ($ARTICLE_NO == null) {
       $statusQuery = "INSERT INTO STATUS VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
        if ($statusInfo = $con->prepare($statusQuery)) {
                $statusInfo->bind_param("sssssssssssss", $pk, $checkDeleted, $checkNotice, $checkWarrant, $checkPromise, $checkCompensation, $checkBond, $checkInjunction, $checkActionpay, $checkActionorder, $checkCourtpayment, $checkForeclosure, $checkPenalty);
                $statusInfo->execute();
                $statusInfo->close();
                echo $pk;
                echo $checkDeleted;
        } else {
                print_r($con->error);
        }
    } else if ($ARTICLE_NO == $pk) {
        $statusQuery = "UPDATE STATUS SET deleted = ?, notice = ?, warrant = ?, promise = ?, compensation = ?, bond = ?, injunction = ?, actionpay = ?, actionorder = ?, courtpayment = ?, foreclosure = ?,penalty = ? WHERE ARTICLE_NO = ?";
        if ($statusInfo = $con->prepare($statusQuery)) {
                $statusInfo->bind_param("sssssssssssss", $checkDeleted, $checkNotice, $checkWarrant, $checkPromise, $checkCompensation, $checkBond, $checkInjunction, $checkActionpay, $checkActionorder, $checkCourtpayment, $checkForeclosure, $checkPenalty, $pk);
                $statusInfo->execute();
                $statusInfo->close();
        } else {
                print_r($con->error);
     }  
    }
}
if($cmd=="EditStatusData") {
    echo '<link rel="stylesheet" href="style.css" type="text/css" />' . "\n";
    echo "<form name=\"statusForm\" action=\"test.php?pk=".$pk."\" method=\"post\" enctype=\"multipart/form-data\">
            <h1>Editing information for Auction No: ".$pk."</h1>
                <input type=\"checkbox\" name=\"checkboxes[]\" value=\"deleted\" ".$checkDeleted." />
                <label for=\"deleted\">Löschung Ebay</label>
                <br />
                <input type=\"hidden\" name=\"cmd\" value=\"submitinfo\" />
                <input name=\"Submit\" type=\"submit\" value=\"submit\" />
        </form>";
}
?>