【发布时间】：2021-06-08 01:18:09
【问题描述】：
我收到以下错误：
PHP message: PHP Fatal error: Uncaught TypeError: Cannot access offset of type string on string
在这一行：
if ($uploadZoneData[1]['size'] != 0) {
在 php 7.4 上我有任何问题，但在 php 8 上我有。
可能是什么问题？
编辑：相关功能的完整代码：
function uploadSingleFile($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°: " . $zoneCustomer . "]) » wurde erfolgreich aktualisiert.", 'ZONES');
}
}
【问题讨论】：
-
这能回答你的问题吗？ Cannot use string offset as an array in php
-
不幸的是，由于它在 php 7.4 下工作，所以不知道我需要在受影响的行上更改什么：/
-
您不应该与
==进行比较，而不是在if语句中分配=吗？ ->if ($uploadZoneData[1]['size'] != 0) {? -
否，因为 If 查询检查文件大小是否不为 0，但根据错误消息，这不是问题。
-
$uploadZoneData[1]是包含来自$newfilename或null的值的string而不是索引为size的array如果您试图确定字符串是否为为空，您需要改用strlen($uploadZoneData[1])或empty(($uploadZoneData[1])。问题是在 PHP 7.4 中它是一个警告，在 8 中它现在是一个致命错误
标签： php string nginx typeerror offset