PHP message: PHP Fatal error: Uncaught TypeError: Cannot access offset of type string on string

Question

我收到以下错误：

PHP message: PHP Fatal error: Uncaught TypeError: Cannot access offset of type string on string

这一行：

if ($uploadZoneData[1]['size'] != 0) {

在 php 7.4 我有任何麻烦，但在 php 8 我有。

可能是什么问题？

编辑：相关函数的完整代码：

function uploadSingleFile($zoneImage, $fileMoveTo, $fileAllowedExtensions, $fileAllowedSize, $zoneCustomer, $zone)
{
    global $config;

    // define file upload settings
    $errors = array();
    $fileName = $zoneImage['name'];
    $fileSize = $zoneImage['size'];
    $fileTmp = $zoneImage['tmp_name'];
    $fileType = $zoneImage['type'];
    $fileExt = strtolower(end(explode('.', $zoneImage['name'])));
    $MBtoByte = $fileAllowedSize * 1048576;
    $extensions= $fileAllowedExtensions;

    // define errors
    if (in_array($fileExt, $extensions) === false) {
        $errors[] = "Dieser Datei-Typ ist nicht erlaubt";
    }

    if ($fileSize > $MBtoByte) {
        $errors[] = 'Die Datei ist zu gross';
    }

    // finally try to upload the file
    if (empty($errors) == true) {
        $temp = explode(".", $zoneImage["name"]);
        $newfilename = $zoneCustomer . '-' . strtoupper($zone) . '-' . uniqid() . '.' . end($temp);

        move_uploaded_file($fileTmp, $_SERVER["DOCUMENT_ROOT"] . $fileMoveTo . $newfilename);
        $status = '1';
    } else {
        $status = '0';
    }

    // build array of the different outputs
    $uploadStatus = array($status, $newfilename, $errors);

    return $uploadStatus;
}

function updateZoneData($zoneFile, $zoneCustomer, $zone, $zoneLink, $maxWidth, $bannerID)
{
    global $db;

    // get customer values
    $getCustomerValues = getColumnValue('customers', "WHERE `customerNr` = '" . $zoneCustomer . "'");

    // define redirect url
    switch ($zone) {
      case "a1":
        $redirectZone = "zones.php#zones-overview-a1-overview";
      break;
      case "a2":
        $redirectZone = "zones.php#zones-overview-a2-overview";
      break;
      case "b1":
        $redirectZone = "zones.php#zones-overview-b1-overview";
      break;
      case "b2":
        $redirectZone = "zones.php#zones-overview-b2-overview";
      break;
      case "b3":
        $redirectZone = "zones.php#zones-overview-b3-overview";
      break;
      case "b4":
        $redirectZone = "zones.php#zones-overview-b4-overview";
      break;
      case "a9":
        $redirectZone = "zones.php#zones-overview-a9-overview";
      break;
      case "a9-1":
        $redirectZone = "zones.php#zones-overview-a9-1-overview";
      break;
      case "a11":
        $redirectZone = "zones.php#zones-overview-a11-overview";
      break;
      default:
        $redirectZone = "zones.php";
      }

    // upload file to the server
    $uploadZoneData = uploadSingleFile($zoneFile, '/adserver/banners/', array("jpg", "jpeg", "png", "gif"), '3', $zoneCustomer, $zone);

    if ($uploadZoneData[1]['size'] != 0) {
        if ($uploadZoneData[0] == '1') {

            // create ZIP-Backup (zone-banners) from '/adserver/banners' to '/cp/includes/files/zip-backups'
            createZipBackup('/adserver/banners', '/cp/includes/files/zip-backups', 'adserver-banners.zip');

            // get zone values & delete old bannerImg from file-system
            $getZoneDeleteValues = getColumnValue('zones', "WHERE `customerNr` = '" . $zoneCustomer . "' AND `zone` = '" . $zone . "' AND `id` = '" . $bannerID . "'");
            unlink($_SERVER["DOCUMENT_ROOT"] . '/adserver/banners/' . $getZoneDeleteValues['0']['bannerImg']);

            // execute action
            $updateZoneData = $db->update("zones", [
                                                   "customerNr" => $zoneCustomer,
                                                   "customer" => $getCustomerValues['0']['customer'],
                                                   "zone" => $zone,
                                                   "bannerImg" => $uploadZoneData[1],
                                                   "bannerLink" => $zoneLink,
                                                   "maxWidth" => $maxWidth,
                                                   "changeDate" => date("Y-m-d H:i:s")
                                                   ], [
                                                      "id" => $bannerID
                                                      ]);

            redirectTo($redirectZone, 1, "« " . strtoupper($zone) . "-Banner (" . $getCustomerValues['0']['customer'] . " [K. N°: " . $zoneCustomer . "]) » wurde erfolgreich aktualisiert.", 'ZONES');
        } else {

        // collect and save errors (file-upload)
            $collectedErrors = array_flatten($uploadZoneData[2]);
            setcookie("collectedErrors", '1', time() + (1 * 5), "/"); // expire in 5 seconds
            $_SESSION["collectedErrors"] = $collectedErrors;

            redirectTo($redirectZone, 0, "« " . strtoupper($zone) . "-Banner (" . $getCustomerValues['0']['customer'] . " [K. N°: " . $zoneCustomer . "]) » konnte nicht aktualisiert werden.", 'ZONES');
        }
    } else {

        // execute action
        $updateZoneData = $db->update("zones", [
                                               "customerNr" => $zoneCustomer,
                                               "customer" => $getCustomerValues['0']['customer'],
                                               "zone" => $zone,
                                               "bannerLink" => $zoneLink,
                                               "maxWidth" => $maxWidth,
                                               "changeDate" => date("Y-m-d H:i:s")
                                               ], [
                                                  "id" => $bannerID
                                                  ]);

        redirectTo($redirectZone, 1, "« " . strtoupper($zone) . "-Banner (" . $getCustomerValues['0']['customer'] . " [K. N°: " . $zoneCustomer . "]) » wurde erfolgreich aktualisiert.", 'ZONES');
    }
}

Answer 1

您应该升级 php。这会帮助你。因为许多代码不适用于旧版本。所以升级 PHP 它会有所帮助。否则分享你的完整代码。我们会尽快解决您的错误。

Answer 2

首先，欢迎来到 Stack Overflow！

此错误意味着您正在尝试访问无效的字符串索引 [1]['size']。请务必检查 uploadSingleFile(...) 返回的是数组而不是字符串。

我检查了你的代码，我看到 uploadSingleFile 返回的数组有这三项：

$uploadStatus = array($status, $newfilename, $errors);

$newfilename 不是数组。它是一个字符串，如您在此处定义的那样：

$newfilename = $zoneCustomer . '-' . strtoupper($zone) . '-' . uniqid() . '.' . end($temp);

Answer 3

感谢您的回答，我的问题的解决方案是。

替换这个

if ($uploadZoneData[1]['size'] != 0) {

具有以下内容：

if (!empty($uploadZoneData[1])) {

Answer 4

我不是技术人员，所以我发现自己经常在 Whosebug 上寻找答案。我遇到了这个问题，来到这里寻找答案。我已经定义了数组 ($CA = []; 在我的例子中)，但是它在数组中比 1 更深的层次上失败了。在最深处，我的数组看起来像这样：

$CA[$row[2]][$row[3]][$row[4]][$row[5]]

我能找到的最简单的答案是必须定义数组的每一层，所以我在数据集的每个循环中都得到了这个：（注意：如果 $row[x] 不是null，所有 $row[任何小于 x 的数字] 都不会为 null。）

WHILE ($row = $result->fetch_row()) {
    if ( !is_null($row[2]) && !is_array($CA[$row[2]]) ) { $CA[$row[2]] = []; }
    if ( !is_null($row[3]) && !is_array($CA[$row[2]][$row[3]]) ) { $CA[$row[2]][$row[3]] = []; }
    if ( !is_null($row[4]) && !is_array($CA[$row[2]][$row[3]][$row[4]]) ) { $CA[$row[2]][$row[3]][$row[4]] = []; }
    if ( !is_null($row[5]) && !is_array($CA[$row[2]][$row[3]][$row[4]][$row[5]]) ) { $CA[$row[2]][$row[3]][$row[4]][$row[5]] = []; }
  ... Code to set the array elements below ...

PHP不再自动创建你需要的数组深度；您必须明确设置它以避免错误。希望这能让这个页面上的其他非技术人员更清楚。我对任何更好的方法感兴趣（我喜欢保持代码简洁！）

Answer 5

你可以使用

if(isset(...))

这是一个常见的 PHP 8 错误

PHP message: PHP Fatal error: Uncaught TypeError: Cannot access offset of type string on string

PHP message: PHP Fatal error: Uncaught TypeError: Cannot access offset of type string on string

php

string

nginx

typeerror

offset