PHP / MySQL：无法将图像保存到服务器上的文件夹，但链接 URL 已更新 MySQL 数据库

Question

我目前创建了一个只允许用户上传照片的系统。已经上传的照片，如果用户想更换，可以更换。

当前代码显示该函数没有错误。在 MySQL 数据库中更新的 URL。但问题是图像不更新。以下是我当前的代码：

update_photo_before.php

<?php

    require_once '../../../../config/configPDO.php';

    $report_id = $_POST['report_id'];
    $last_insert_id = null;

    //Allowed file type
    $allowed_extensions = array("jpg","jpeg","png");

    //File extension
    $ext = strtolower(pathinfo($_FILES['uploadFile']['name'], PATHINFO_EXTENSION));

    //Check extension
    if(in_array($ext, $allowed_extensions)) {

        $defID = "before_" . $report_id;
        $imgPath = "images/$defID.png";
        $ServerURL = "http://172.20.0.45/tgotworker_testing/android/$imgPath";

        $query = "UPDATE ot_report SET photo_before = '$ServerURL', time_photo_before = GETDATE() WHERE report_id = :report_id";
        $sql = $conn->prepare($query);
        $sql->bindParam(':report_id', $report_id);
        $sql->execute();

        if ($sql){

            move_uploaded_file($_FILES['uploadFile']['name'], $imgPath); //line 28
            echo "<script>alert('Saved')</script>";
            header("Location: view_task.php?report_id=".$_POST['report_id']);

        }else{
            echo "Error!! Not Saved";
        }


    } else {
        echo "<script>alert('File not allowed')</script>";
        header("Location: view_task.php?report_id=".$_POST['report_id']);    

    }

?>

我的文件夹图像位于 'tgotworker_testing' --> 'android' --> 'images'。

对于update_photo_before.php：

'tgotworker_testing' --> 'pages' --> 'dashboard' --> 'engineer' --> 'view_task' --> 'update_photo_before.php'

谁能解决我的问题？谢谢！

Answer 1

您检查数据库是否更新，但不检查图像是否保存到服务器。

move_uploaded_file() 成功返回true，失败返回false。因此，您可以在代码中进行与 $sql 类似的测试。

<?php 
require_once '../../../../config/configPDO.php';

$report_id = $_POST['report_id'];
$last_insert_id = null;

//Allowed file type
$allowed_extensions = array("jpg","jpeg","png");

//File extension
$ext = strtolower(pathinfo($_FILES['uploadFile']['name'], PATHINFO_EXTENSION));

//Check extension
if(in_array($ext, $allowed_extensions)) {

    $defID = "before_" . $report_id;
    $imgPath = "images/$defID.png";
    $ServerURL = "http://172.20.0.45/tgotworker_testing/android/$imgPath";

    // Check if image is uploaded to folder
    if(move_uploaded_file($_FILES['uploadFile']['name'], $imgPath) === true) {

      // If upload succeeds, then update database
      $query = "UPDATE ot_report SET photo_before = '$ServerURL', time_photo_before = GETDATE() WHERE report_id = :report_id";
      $sql = $conn->prepare($query);
      $sql->bindParam(':report_id', $report_id);
      $sql->execute();

      // Check if database updated
      if (!$sql){
            echo "Error!! Database not updated.";
      } else {
           // Success!
           header("Location: view_task.php?report_id=".$_POST['report_id']);
      }
  } else {
      // Could not upload file
      echo "Error!! Could not upload file to server.";
  }
}

当 PHP 无法上传文件时，它会抛出警告。如果您在调试时打开警告，它应该会告诉您它不工作的原因，您将能够更好地解决问题。

将这些行放在脚本的顶部以显示所有警告和错误：

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);