Question

我遇到了有关文件上传的问题。我正在尝试将JPG，JPEG或PNG图像上传到文件夹。我正在读一本书，并按照他们的例子，我的代码现在是这样的：

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>Upload an Image</title>
    <style type="text/css" title="text/css" media="all">
        .error {
            font-weight: bold;
            color: #C00;
        }
    </style>
</head>
<body>
<?php # Script 11.2 - upload_image.php

// Check if the form has been submitted:
if ($_SERVER['REQUEST_METHOD'] == 'POST') {

    // Check for an uploaded file:
    if (isset($_FILES['upload'])) {

        // Validate the type. Should be JPEG or PNG.
        $allowed = array ('image/pjpeg', 'image/jpeg', 'image/JPG', 'image/X-PNG', 'image/PNG', 'image/png', 'image/x-png');
        if (in_array($_FILES['upload']['type'], $allowed)) {

            // Move the file over.
            if (move_uploaded_file ($_FILES['upload']['tmp_name'], "upload/{$_FILES['upload']['name']}")) {
                echo '<p><em>The file has been uploaded!</em></p>';
            } // End of move... IF.

        } else { // Invalid type.
            echo '<p class="error">Please upload a JPEG or PNG image.</p>';
        }

    } // End of isset($_FILES['upload']) IF.

    // Check for an error:
    if ($_FILES['upload']['error'] > 0) {
        echo '<p class="error">The file could not be uploaded because: <strong>';

        // Print a message based upon the error.
        switch ($_FILES['upload']['error']) {
            case 1:
                print 'The file exceeds the upload_max_filesize setting in php.ini.';
                break;
            case 2:
                print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form.';
                break;
            case 3:
                print 'The file was only partially uploaded.';
                break;
            case 4:
                print 'No file was uploaded.';
                break;
            case 6:
                print 'No temporary folder was available.';
                break;
            case 7:
                print 'Unable to write to the disk.';
                break;
            case 8:
                print 'File upload stopped.';
                break;
            default:
                print 'A system error occurred.';
                break;
        } // End of switch.

        print '</strong></p>';

    } // End of error IF.

    // Delete the file if it still exists:
    if (file_exists ($_FILES['upload']['tmp_name']) && is_file($_FILES['upload']['tmp_name']) ) {
        unlink ($_FILES['upload']['tmp_name']);
    }

} // End of the submitted conditional.
?>

<form enctype="multipart/form-data" action="upload_image.php" method="post">

    <input type="hidden" name="MAX_FILE_SIZE" value="524288" />

    <fieldset><legend>Select a JPEG or PNG image of 512KB or smaller to be uploaded:</legend>

        <p><b>File:</b> <input type="file" name="upload" /></p>

    </fieldset>
    <div align="center"><input type="submit" name="submit" value="Submit" /></div>

</form>
</body>
</html>

很奇怪，因为我已经创建了上传文件夹并在其上设置了相关权限，我可以完美地上传PNG文件，但是当我尝试上传JPG时，我一直收到错误的＆＃34;文件是仅部分上传＆＃34;根据$ errors数组输出。有问题的文件不大，约为60-80 Kb。 我是新手，只是想知道上面的代码是否有任何明显错误导致此错误或是否是服务器？

我还配置了我的php.ini，并且我已经设置了file_uploads。我在Ubuntu上使用Nginx运行PHP 5.6。

感谢任何帮助。谢谢！

Answer 1

可能是因为in_array 区分大小写。而是使用strtolower()并使你的mime类型小写。

$allowed = array ('image/pjpeg', 'image/jpeg', 'image/jpg', 'image/x-png', 'image/png');
if (in_array(strtolower($_FILES['upload']['type']), $allowed)) {
    ...

Answer 2

<?php

 if($_FILES['upload']['name'] != ''){
     $allowed_ext = array("gif","jpg","jpeg","png","GIF","JPG","JPEG","PNG"); 
     $filename = $_FILES['upload']['name'];
     $ext = end(explode(".", $filename));
     if(!in_array($ext,$allowed_ext)){echo '<p class="error">Please upload a JPEG or PNG image.</p>';}
     else{
          $rand1 = time();
          $image_name = $rand1.'.'.$ext;            //for rename image name
          $path = "upload/".$image_name;            //for image path
          move_uploaded_file($_FILES["upload"]["tmp_name"], $path);
     }
}

＆GT;

PHP文件上传部分上传错误

2 个答案: