PHP 上传失败

Question

每当我上传它说的任何文件时，

文件是图像 - image/png。抱歉，上传文件时出错。

我正在使用 post 方法和 enctype="multipart/form-data"。我的图像文件也是正确的。

<?php
    if(isset($_POST['submit'])){
    $target_dir = "pics/";
        $target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
        $uploadOk = 1;
        $imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
        // Check if image file is a actual image or fake image
        if(isset($_POST["submit"])) {
            $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
            if($check !== false) {
                echo "File is an image - " . $check["mime"] . ".";
                $uploadOk = 1;
            } else {
                echo "File is not an image.";
                $uploadOk = 0;
            }
        }
        // Check if file already exists
        if (file_exists($target_file)) {
            echo "Sorry, file already exists.";
            $uploadOk = 0;
        }
        // Check file size
        if ($_FILES["fileToUpload"]["size"] > 500000) {
            echo "Sorry, your file is too large.";
            $uploadOk = 0;
        }
        // Allow certain file formats
        if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
        && $imageFileType != "gif" ) {
            echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
            $uploadOk = 0;
        }
        // Check if $uploadOk is set to 0 by an error
        if ($uploadOk == 0) {
            echo "Sorry, your file was not uploaded.";
        // if everything is ok, try to upload file
        } else {
            if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
                echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
            } else {
                echo "Sorry, there was an error uploading your file.";
            }
        }
     }
?>





<form action="" method="post" enctype="multipart/form-data">
            <div class="row">
              <div class="col-md-6">
                <div class="form-group">
                  <label for="usr">Select image to upload:</label>
                  <input type="file" name="fileToUpload" id="fileToUpload">
                </div>
                <div class="form-group">
                  <label for="usr">URL:</label>
                  <input type="text" class="form-control" id="usr" name="url">
                </div>
              </div>
            </div>
            <button type="submit" name="submit" class="btn btn-success">Add</button>
            <button type="reset" class="btn btn-warning">Reset</button>
          </form>

Answer 1

您的文件无法移动。

• 检查要移动到的路径
• 检查目录的权限
• 检查您对tmp 目录的访问权限

您使用相对路径：$target_dir = "pics/";

改变你的路径：

$target_dir = $_SERVER['DOCUMENT_ROOT'] . '/pics/';