Question

基本上下面的代码只允许图片通过我已将.mov和.mp4添加到允许列表中，但它仍会输出文件在上传时不是图像;只是想知道我在哪里出错了。

帖子和表格：

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

<? 
$post = $_GET['post'];

if ($post == 'true') {
    $target_dir = "uploads/";
    $target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
    $uploadOk = 1;
    $imageFileType = pathinfo($target_file, PATHINFO_EXTENSION);
    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

    if ($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg" && $imageFileType != "gif" && $imageFileType != "mp4" && $imageFileType != "mov") {
        echo "Sorry, only JPG, JPEG, PNG, MP4, MOV & 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

<强> getimagesize

函数将确定任何给定图像文件的大小并返回尺寸以及文件类型和高度/宽度文本字符串在普通的HTML IMG标签和对应的HTTP中使用内容类型。

正如它在文档中完全提及它只适用于图像文件。您尝试上传视频文件.mov and .mp4，这是您收到该错误的原因

获取视频文件维度How to get video duration, dimension and size in PHP?

仅允许图像FILE_UPLOAD

1 个答案: