Question

我正在尝试使用w3schools文件上传设置一个简单的文件上传，以上传音频

$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["file"]["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["file"]["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["file"]["size"] > 500000) {
    echo "Sorry, your file is too large.";
    $uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg" && $imageFileType != "gif" && $imageFileType != "mp3" ) {
    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["file"]["tmp_name"], $target_file)) {
        echo "The file ". basename( $_FILES["file"]["name"]). " has been uploaded.";
    } else {
        echo "Sorry, there was an error uploading your file.";
    }
}

<form class="" action="<?php echo WEB_ROOT ?>components/includes/_int/su.php" method="POST" enctype="multipart/form-data">
        <div class="row">
            <div class="col-lg-4">
                <div class="form-group">
                    <label for="sTitle">Song Title</label>
                    <input class="form-control" name="sTitle" type="text" id="sTitle">
                </div>
            </div>
            <div class="col-lg-4">
                <div class="form-group">
                    <label for="sGenre">Genre</label>
                    <select id="sGenre" name="sGenre" class="selectpicker form-control">
                        <?php foreach (genre::GetGenresT() as $genre) : ?>
                            <option value="<?php $genre->PrintID(); ?>"><?php $genre->PrintName(); ?></option>
                        <?php endforeach; ?>
                    </select>
                </div>
            </div>
            <div class="col-lg-4">
                <div class="form-group">
                    <label for="sArtist">Artist</label>
                    <select id="sArtist" name="sArtist" class="selectpicker form-control">
                        <?php foreach (artist::GetArtists() as $artist) : ?>
                            <option value="<?php $artist->PrintID(); ?>"><?php $artist->PrintName(); ?></option>
                        <?php endforeach; ?>
                    </select>
                </div>
            </div>
            <div class="col-lg-12">
                <div class="form-group">
                    <label for="sLyrics">Lyric</label>
                    <textarea class="form-control">sadsadas</textarea>
                </div>
            </div>
            <div class="col-lg-12">
                <div class="form-group">
                    <input type="file" class="form-control" name="file" id="file">
                </div>
            </div>
            <div class="col-lg-4">
                <div class="form-group">
                    <a href="#" class="btn btn-warning"><i class="fa fa-arrow-left"></i> Cancel</a>
                    <button name="btn-submit" class="btn btn-success" type="submit">SUBMIT</button>
                </div>
            </div>
        </div>
    </form>

正如您将在PHP代码中看到我添加了“＆amp;＆amp; $ imageFileType！=”mp3“，我得到的唯一错误是”抱歉，上传文件时出错。“错误。它似乎正在经历一切正常，直到它不需要上传任何其他错误。

它上传的图片很好但是mp3文件它不会这样做。我试图找到其他例子，但导致同样问题的一切。如果有人能解释为什么这样做会很棒！谢谢！

Answer 1

您只是在初始检查中检查图像文件类型，这就是您的音频失败的原因。 MIME类型对于mp3是不同的，它是'audio / mpeg'而不是jpg / png / gif，这是图像MIME类型检查的内容。理想情况下，您应该在php中检查一系列MIME类型（并从那里开始）..在php website上的用户注释中有一个很好的例子

发布的示例为

if(!function_exists('mime_content_type')) {

    function mime_content_type($filename) {

        $mime_types = array(

            // images
            'png' => 'image/png',
            'jpe' => 'image/jpeg',
            'jpeg' => 'image/jpeg',
            'jpg' => 'image/jpeg',
            'gif' => 'image/gif',
            'bmp' => 'image/bmp',
            'ico' => 'image/vnd.microsoft.icon',
            'tiff' => 'image/tiff',
            'tif' => 'image/tiff',
            'svg' => 'image/svg+xml',
            'svgz' => 'image/svg+xml',

            // audio/video
            'mp3' => 'audio/mpeg',
            'qt' => 'video/quicktime',
            'mov' => 'video/quicktime',


        );

        $ext = strtolower(array_pop(explode('.',$filename)));
        if (array_key_exists($ext, $mime_types)) {
            return $mime_types[$ext];
        }
        elseif (function_exists('finfo_open')) {
            $finfo = finfo_open(FILEINFO_MIME);
            $mimetype = finfo_file($finfo, $filename);
            finfo_close($finfo);
            return $mimetype;
        }
    }
}
?>

你的情况有点长！你可以把它缩短到

<?php
$finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension
foreach (glob("*") as $filename) {
    echo finfo_file($finfo, $filename) . "\n";
}
finfo_close($finfo);
?>

即。省略你不想要的类型！：）

希望这有帮助

编辑：当然，您可以只检查文件大小而不是检查图像大小，然后检查扩展名，而不是this

{{1}}

更方便！

无法上传音频文件但图像工作正常

1 个答案: