Question

我的图片上传存在问题。我正在使用w3schools的表格和脚本。代码如下。问题是文件类型的验证。 getimagesize返回它是一个实际图像，但它无法通过文件类型的验证。我收到以下错误：文件是图像 - 图像/ jpeg。对不起，只有JPG，JPEG，PNG＆amp;允许GIF文件。抱歉，您的文件未上传。

当我评论验证发生的if函数时，图像上传就好了。

    /*if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
    && $imageFileType != "gif" ) {
    echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
    $uploadOk = 0;
    }*/

我在论坛上查了一下，但没有人遇到过这种错误。提前谢谢。

基本形式：

    <form action="includes/upload.php" method="post" enctype="multipart/form-data">
    Select image to upload:
    <input type="file" name="fileToUpload" id="fileToUpload">
    <input type="submit" value="Upload Image" name="submit">
    </form>

upload.php脚本：

    <?php
    $target_dir = "../uploads/";
    $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"] > 50000000) {
    echo "Sorry, your file is too large.";
    $uploadOk = 0;
    }
    // Allow certain file formats
    // This is where the problem occurs
    if($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.";
    }
    }
    ?>

Answer 1

使用$_FILES["fileToUpload"]["name"]代替$target_file

 $imageFileType = pathinfo($_FILES["fileToUpload"]["name"],PATHINFO_EXTENSION);

在php中上传图片 - 验证返回错误结果

1 个答案: